2021 Chevrolet Silverado 1500 Lug Nut Torque & Bolt Specs

The 2021 Chevrolet Silverado 1500 lug nut torque is 140 ft-lbs (190 Nm), tightened with a 22mm (13/16") socket on M14x1.5 studs. Torque in a star pattern in two passes (snug, then final), and re-check after the first 50–100 miles of driving. Use a calibrated torque wrench — not an impact gun — for the final pass.

Lug nut torque: 140 ft-lbs (190 Nm) · Socket size: 22mm (13/16") · Thread: M14x1.5.

This page is the OEM-referenced fastener summary for the 2021 Chevrolet Silverado 1500. Use it before any maintenance or repair job where torque values matter — brake work, wheel changes, suspension service, engine teardowns, or oil changes. Specs are pulled from manufacturer service literature, cross-checked against community data, and updated as new chassis variants become available.

GM lug-nut torque clusters around 140 ft-lbs (190 Nm) for half-ton Silverado/Sierra and 100 ft-lbs for passenger cars like Malibu, Impala, and Cruze. GM heavy-duty trucks (2500HD/3500HD) jump to 165 ft-lbs. Most GM passenger cars use a 19mm socket; trucks moved from 22mm to 22mm-with-deep-well in 2014. Watch for GM's flat-flange lug nut design on the Silverado — the standard cone-seat aftermarket lugs will not seat correctly.

Fourth generation (T1XX, 2019–present)

The 2021 Silverado 1500 is built on GM's T1XX platform (2019–present), with a 355-hp 5.3-liter and an available 420-hp 6.2-liter EcoTec3 V8. These engines use Dynamic Fuel Management, which can run any of 17 cylinder patterns rather than the earlier system's simple eight-or-four switch.

The six-lug, M14x1.5 wheel-stud convention carries over from the K2XX generation. As before, the aluminum V8 blocks mean fasteners threading into soft alloy should be set with a calibrated wrench.

Common fastener categories on the 2021 Chevrolet Silverado 1500

Wheel / lug nut torque and thread spec (covered above)
Brake caliper bracket bolts (typically 80-130 ft-lbs) and slide/guide pins (18-35 ft-lbs)
Engine oil drain plug torque — rarely above 30 ft-lbs; always use a new crush washer
Transmission pan, valve cover, and intake manifold bolts (low torque, often 89-106 in-lbs)
Suspension control arm, sway bar, tie rod end and ball joint torque
Spark plug torque (typically 10-15 ft-lbs on aluminum heads — do not exceed)
Differential cover bolts (RWD/4WD only) and transfer case fasteners

Repair guidance for this model year

For 2021 late-model work: Modern vehicles increasingly use aluminum body and suspension components. Aluminum fastener torque is typically 60-70% of equivalent steel torque, and aluminum threads strip easily. Use a calibrated torque wrench and apply anti-seize on any steel fastener threading into aluminum.

Tools you will need

Metric socket set (8mm-22mm), 6-point impact-rated
Calibrated torque wrench (10-150 ft-lbs covers most automotive jobs; add a 0-250 ft-lbs wrench for truck lug nuts)
Breaker bar (24" minimum) for initial loosening
Penetrating oil (PB Blaster or Kroil) for any fastener over 5 years old
Anti-seize on stainless or dissimilar-metal threads; thread-locker (Loctite blue) on critical reassembly

Frequently asked questions

What is the lug nut torque on a 2021 Chevrolet Silverado 1500?

The OEM-specified lug-nut torque for the 2021 Chevrolet Silverado 1500 is 140 ft-lbs (190 Nm), using a 22mm (13/16") socket on M14x1.5 thread studs. Use a calibrated torque wrench in a star pattern, in two passes (50% and 100%), and re-check after 50-100 miles of driving.

What socket size do I need for the 2021 Chevrolet Silverado 1500 lug nuts?

The 2021 Chevrolet Silverado 1500 uses a 22mm (13/16") socket. A 6-point impact-rated socket is recommended over a 12-point chrome socket — 12-points round off lug nuts under impact-driver use.

Are the 2021 Chevrolet Silverado 1500 fasteners metric or SAE?

Metric is the standard for this vehicle. Most fasteners on this vehicle are metric (M6, M8, M10, M12, M14). Bring a full metric set; SAE substitutes can round the head. Bolt-head markings are the fastest way to confirm grade and material at the bench.

Other Chevrolet Silverado 1500 years

Same model, different model year — fastener spec may change. Always confirm against the year for your VIN.

→ 2021 Chevrolet Silverado 1500 oil drain plug torque & size

→ 2021 Chevrolet Silverado 1500 suspension & steering torque specs (control arm, ball joint, tie rod)

→ 2021 Chevrolet Silverado 1500 engine & transmission mount torque specs

→ 2021 Chevrolet Silverado 1500 brake job torque specs (caliper, bracket & slide pins)

→ Full 2021 Chevrolet Silverado 1500 maintenance schedule (intervals, costs & free tracker) on ServiceSageAuto

All 183 2021 Chevrolet Silverado 1500 fastener specs

Per-bolt torque, wrench size, and thread spec for the 2021 Chevrolet Silverado 1500, sourced from OEM service literature and verified against community shop data. Values pair imperial (ft-lb) and metric (Nm) where the manufacturer publishes both. 5 of the 183 fastener specs on this page are independently verified against OEM service manuals and manufacturer torque data (last reviewed June 2026).

Brakes — 2021 Chevrolet Silverado 1500

Brake fasteners on the 2021 Chevrolet Silverado 1500 — caliper bracket, slide pins, and banjo bolt torque follow. The front caliper slide pin bolts uses a 18 mm (outer guide pin bolt); 19 mm on some Gen2 drive on a M12x1.75 (pin bolt) thread, torqued to 74 ft-lbs (Gen2 GMT900 2007-2013 per YouTube repair video — 18 mm pins); 80 ft-lbs (Gen1 GMT800 1999-2006 per TRQ video); 74 ft-lbs (Gen3 K2XX 2014 per TRQ video) at the caliper guide pins / slide pins to caliper bracket. At the front abs sensor to wheel bearing hub, the abs wheel speed sensor bolt (front) torques to 115 in-lbs (9.6 ft-lbs) — Gen1 GMT800 (1999-2006 per TRQ video); 13 ft-lbs — Gen2 GMT900 (2007-2013 per Merchant Auto FSM) (3/16 in Allen (Gen1); varies Gen2 drive, 3/16 Allen head thread). For the wheel cylinder to brake backing plate, plan for a 13 mm tool on a M8x1.25 stud; final torque is 11-17 ft-lbs (typical GM range for wheel cylinder mounting bolts) (rear drum brake wheel cylinder bolts). Rear brake caliper bracket bolts (disc brake trucks) tightens to 148 ft-lbs (Gen3 K2XX 2014 confirmed by TRQ repair video), takes a 18 mm driver, runs on M16x1.5 (18 mm hex) threads, located at the rear caliper bracket to rear axle/knuckle flange. The front brake caliper bracket (anchor plate) bolts uses a 18 mm drive on a M14x1.5 or M16x1.5 (18 mm hex head) thread, torqued to 37 ft-lbs (50 Nm), then +30-45° (torque-to-yield — replace bolts) at the caliper bracket (anchor plate) bolts to steering knuckle. OEM-verified spec.

Engine — 2021 Chevrolet Silverado 1500

Engine bolt-by-bolt torque for the 2021 Chevrolet Silverado 1500, including the long block, valve covers, and intake. At the individual coil mounting bolts to coil bracket on valve cover, the ignition coil pack bolts (coil-to-bracket) torques to 106 in-lbs (8.8 ft-lbs) (8 mm drive, M6x1.0 thread). For the timing chain/front cover to engine block, plan for a 10 mm tool on a M8x1.25 stud; final torque is 18 ft-lbs (engine front cover bolts). Thermostat housing (water inlet) bolts tightens to 11 ft-lbs, takes a 10 mm driver, runs on M8x1.25 threads, located at the thermostat housing/water outlet at front of intake manifold. The alternator (generator) bolts uses a 15 mm / 13 mm drive on a M10x1.5 (mounting bolts); M8x1.25 (small bracket bolts) thread, torqued to 37 ft-lbs (bracket bolts to block); 18 ft-lbs (generator rear bracket to block); 18 ft-lbs (generator rear bracket to generator) at the alternator mounting to bracket; bracket to block. At the lower intake manifold to cylinder heads (composite manifold, 10 bolts), the intake manifold bolts torques to Step 1 = 44 in-lbs; Step 2 = 89 in-lbs (7.4 ft-lbs final) (8 mm drive, M8x1.25 thread). For the valve cover to cylinder head, each bank, plan for a 8 mm tool on a M6 stud; final torque is 106 in-lbs (8.8 ft-lbs) (valve (rocker arm) cover bolts). Engine mount stud / bolt to engine block tightens to 37 ft-lbs, takes a 15 mm driver, runs on M10x1.5 threads, located at the block-side of front engine mount bracket. The main bearing cap side bolts uses a 10 mm drive on a M8x1.25 thread, torqued to 18 ft-lbs (Gen III/IV iron block). 22 ft-lbs + 60 degrees (Gen V LT aluminum block 2014). at the main bearing caps, side bolts (horizontal). At the oil pan rear edge, bolts into rear crankshaft cover, the oil pan bolts — m6 (to rear cover) torques to 106 in-lbs (8.8 ft-lbs) (8 mm drive, M6x1.0 thread). For the water pump to front engine cover, plan for a 10 mm tool on a M8x1.25 stud; final torque is Step 1 = 11 ft-lbs; Step 2 (final) = 22 ft-lbs (water pump bolts). Oil pan bolts — m8 (to block and front cover) tightens to 18 ft-lbs, takes a 10 mm driver, runs on M8x1.25 threads, located at the oil pan perimeter bolts, sides and front. The engine mount through bolt (frame-side isolator) uses a 18 mm drive on a M12x1.75 thread, torqued to 70 ft-lbs (through bolt); 59 ft-lbs (through bolt nut) at the through rubber isolator, connecting bracket to frame crossmember. At the fixed guide on passenger side of timing chain, the timing chain guide bolts torques to 26 ft-lbs (Gen III LS1/LS6 reference — applies to Gen III truck engines); 18 ft-lbs (Gen IV LT) (10 mm drive, M8 thread). For the rocker arms on cylinder head, plan for a 10 mm tool on a M8x1.25 stud; final torque is 22 ft-lbs (rocker arm (valve lifter) bolts). Throttle body bolts tightens to 106 in-lbs (8.8 ft-lbs), takes a 8 mm driver, runs on M6x1.0 threads, located at the throttle body to intake manifold (4 bolts). The camshaft retainer plate bolts uses a 10 mm or T-30 Torx drive on a M8 thread, torqued to 18 ft-lbs (standard hex bolts); 11 ft-lbs (countersunk Torx/hex bolts) at the front of block, cam retainer/thrust plate. At the valley cover (cam actuator housing cover on top of block between heads), the engine valley cover bolts torques to 18 ft-lbs (10 mm drive, M8x1.25 thread). For the front of engine block / timing cover, vvt solenoid mounting, plan for a 8 mm / 10 mm depending on bracket tool on a M6 stud; final torque is 18 ft-lbs (Gen IV LS with VVT — LC9, LY5, LMG, L9H, 2007+); 106 in-lbs (camshaft position sensor bolt, all Gen III) (cam actuator (vvt) solenoid bolts). Timing chain tensioner bolts tightens to 18 ft-lbs, takes a 10 mm driver, runs on M8 threads, located at the driver's side of timing chain, block-mounted tensioner. The power steering pump bolts uses a 13 mm or 15 mm depending on bolt drive on a M8x1.25 thread, torqued to 18 ft-lbs (pump to bracket); 18 ft-lbs (bracket to block) at the power steering pump to bracket / block. At the oil filter mount on engine block or adapter, the oil filter torques to 22 ft-lbs (Oil filter wrench (65 mm or 14-flute cap type) drive, 3/4"-16 (SAE spin-on thread) thread). This figure is independently verified against OEM service data. For the exhaust manifold to cylinder head, 8 bolts per side, plan for a 10 mm or 13 mm (varies by year — some use Torx) tool on a M8x1.25 stud; final torque is 2-stage: Step 1 = 11 ft-lbs; Step 2 (final) = 18 ft-lbs. (New cylinder head: 11 ft-lbs first pass per some sources.) (exhaust manifold bolts). Cylinder head bolts — gen v lt (2014 k2xx) tightens to All 20 bolts Step 1 = 59 ft-lbs; All 20 Step 2 = +90 degrees; 19 standard bolts Step 3 = +60 degrees; Allen bolt (LH head, front-most position) Step 3 = +40 degrees, takes a 13 mm / 6 mm Allen driver, runs on M11x2.0 and M8x1.25 threads, located at the 20 head bolts per head (19 standard + 1 allen-head on lh head). The knock sensor bolts uses a 15 mm hex (sensor body hex) drive on a M8x1.25 thread, torqued to 15 ft-lbs at the engine block valley (beneath intake manifold), 2 sensors v8.

Drivetrain — 2021 Chevrolet Silverado 1500

Drivetrain and driveline fasteners for the 2021 Chevrolet Silverado 1500 — axle, transmission, and differential plugs. For the differential housing, plan for a 3/8 inch tool on a 3/8-18 NPT stud; final torque is 24 lb-ft (differential drain plug). Front differential cover bolts (aam 9.25-in ifs, 4wd) tightens to 24 ft-lbs (drain/fill plug); cover bolt torque ~ 30 ft-lbs (same as rear cover), takes a 13 mm driver, runs on M8x1.25 (cover bolts) threads, located at the front differential cover bolts on aam 9.25 ifs axle. The front driveshaft cv joint flange bolts (4wd) uses a 15 mm drive on a M10x1.5 thread, torqued to 53 ft-lbs at the front driveshaft cv joint flange to transfer case output flange. At the transfer case to transmission adapter, the transfer case-to-transmission adapter bolts / nuts (nvg246 / nvg263) torques to 37 ft-lbs (adapter bolts and nuts) (15 mm drive, M10x1.5 thread). For the transmission bellhousing to engine block, plan for a 15 mm (4L60E) / 18 mm (4L80E) tool on a M10x1.5 (4L60E) / M12x1.75 (4L80E) stud; final torque is 35 ft-lbs (4L60E); 44 ft-lbs (32 Nm — 4L80E) (transmission-to-engine bolts (4l60e / 4l80e)). Driveshaft u-joint strap bolt tightens to 15 lb-ft, takes a 1/2 inch driver, runs on 5/16-18 threads, located at the driveshaft yoke. The front differential actuator bolt uses a 10mm drive on a M8 x 1.25 thread, torqued to 18 lb-ft at the front axle housing. At the transfer case skid shield to frame, the transfer case shield / skid plate bolts torques to 15 ft-lbs (10 mm or 13 mm drive, M8x1.25 thread). For the differential cover, plan for a 13mm tool on a M10 x 1.5 stud; final torque is 25 lb-ft (differential cover bolt). Rear pinion nut / preload (gm 8.5/8.6) tightens to Pinion bearing preload (rotational): 14-19 in-lbs (new bearings), 6-8 in-lbs (used bearings). Pinion nut tightened until preload achieved — not a set ft-lb value., takes a 1-3/4 in or appropriate crowfoot driver, runs on Large coarse pinion nut threads, located at the pinion stem nut. The front cv axle shaft inboard flange bolts (4wd) uses a 15 mm drive on a M10x1.5 thread, torqued to 58 ft-lbs at the inner cv joint 6-bolt flange to front differential output. At the torque converter to flexplate (through inspection cover), the flexplate-to-torque converter bolts torques to 44 ft-lbs (4L60E); 46 ft-lbs (4L60E per some sources); 32 ft-lbs (4L80E) (15 mm drive, M10x1.5 thread). For the ring gear to carrier, 9.5-in axle, plan for a 18 mm tool on a M12x1.25 stud; final torque is 103 ft-lbs (Merchant Automotive FSM) (rear ring gear bolts (gm 9.5 axle)). Front wheel hub / axle nut (4wd) tightens to 177 ft-lbs (1999-2009); 188 ft-lbs (2010+), takes a 35 mm or 36 mm socket driver, runs on M28x1.5 or 1-5/16"-18 (large spindle nut) threads, located at the outer end of front half-shaft, axle nut at hub. The rear ring gear bolts (gm 8.5/8.6 axle) uses a 18 mm drive on a M12x1.25 (ring gear bolts) thread, torqued to 65 ft-lbs (Crawlpedia/Sierra Gear reference); 89 ft-lbs (Merchant Automotive 2007+ factory manual) at the ring gear to differential carrier. At the rear differential cover perimeter bolts, the rear differential cover bolts (gm 8.5/8.6 10-bolt axle) torques to 26 ft-lbs (Gen2 GMT900 6.2L per OpenLabor Project); 30 ft-lbs (common FSM spec); general range 24-30 ft-lbs (13 mm drive, M8x1.25 thread). For the transmission crossmember/support bracket to frame rails, plan for a 18 mm tool on a M12x1.75 stud; final torque is 85 ft-lbs (transmission crossmember bolts (to frame)). Rear driveshaft bolts (to rear pinion/differential flange) tightens to 18 ft-lbs (U-joint strap/cap bolts, M8), takes a 13 mm driver, runs on M8x1.25 (strap bolts) threads, located at the rear driveshaft u-joint strap bolts at rear axle pinion flange. The transfer case mounting bolt uses a 18mm drive on a M12 x 1.75 thread, torqued to 37 lb-ft at the transmission/transfer case. At the transfer case case bottom/side, the transfer case drain/fill plug (nvg246 / nvg263) torques to 15 ft-lbs (3/8 in square drive or 24 mm socket drive, 3/8" NPT (pipe thread) or metric depending on case thread). For the rear differential cover, gen2 trucks with 9.5 axle, plan for a 13 mm or 15 mm tool on a M8x1.25 or M10x1.5 stud; final torque is 30 ft-lbs (rear differential cover bolts (gm 9.5 axle)). Transfer case drain plug tightens to 25 lb-ft, takes a 15mm driver, runs on M14 x 1.5 threads, located at the transfer case. The driveshaft center support bearing bolt uses a 13mm drive on a M10 x 1.5 thread, torqued to 37 lb-ft at the frame crossmember. At the rubber transmission mount to transmission extension housing, the transmission mount bolt (trans-to-mount) torques to 35 ft-lbs (mount to transmission); 30 ft-lbs (mount nuts at crossmember) (15 mm drive, M10x1.5 thread). For the differential housing, plan for a 3/8 inch tool on a 3/8-18 NPT stud; final torque is 24 lb-ft (differential fill plug).

Suspension — 2021 Chevrolet Silverado 1500

Suspension and chassis fastener torque for the 2021 Chevrolet Silverado 1500 — strut, control arm, and sway bar values. Lower ball joint nut tightens to 74 ft-lbs (Gen1 GMT800 1999-2006 — castle nut with cotter pin); 81 ft-lbs (Gen2 GMT900 2007-2013 — flange nut); 37 ft-lbs + 130 degrees (Gen2 GMT900 alternate spec / Gen3 K2XX 2014 with TTY captured-w, takes a 24 mm driver, runs on M20x1.5 stud (typical lower ball joint stud) threads, located at the lower ball joint stud to steering knuckle. The sway bar end links (front) uses a 15 mm or 13 mm (varies by design) drive on a M10x1.5 (typical end link nut) thread, torqued to 17 ft-lbs (Gen2 GMT900 2007-2013 per Merchant Auto); 89 in-lbs (Gen1 GMT800 1999-2007 per repair video referencing OEM spec) at the front stabilizer bar end links, nut at sway bar and at control arm. At the torsion bar adjustment bolt at crossmember, the torsion bar adjuster bolt (gen1 gmt800 only) torques to No specific torque spec — turn bolt to achieve desired ride height. Crossmember to frame bushing bolt: 70 ft-lbs. (18 mm drive, 18 mm bolt thread). For the u-bolts clamping rear axle to leaf spring pack, plan for a 7/8 in or 22 mm tool on a 9/16-18 UNF (typical 1500 U-bolt) stud; final torque is 74 ft-lbs (Gen1 1999-2006 per multiple sources); 53 ft-lbs (Merchant Automotive 2007+ FSM, 1500 series) (rear leaf spring u-bolt nuts (1500 series)). Sway bar bracket bolts (front) tightens to 37 ft-lbs, takes a 15 mm driver, runs on M10x1.5 threads, located at the stabilizer bar insulator clamp brackets to frame. The steering intermediate shaft pinch bolt uses a 15 mm drive on a M10x1.5 (pinch bolt) thread, torqued to 37 ft-lbs (upper coupling to column shaft, 2000-2006 per 1AAuto); 35 ft-lbs (lower coupling to rack/gear, 2000-2006); 30 ft-lbs (pre-2000 GMT800 per 1988-1999 repair video) at the intermediate steering shaft, upper and lower pinch bolts. At the tie rod end stud to steering knuckle, the outer tie rod end nut torques to 48 ft-lbs (Gen1 1999-2006); 44 ft-lbs (Gen2/Gen3 2007-2014) (22 mm drive, M14x1.5 castle nut (typical) thread). For the upper ball joint stud to steering knuckle, plan for a 18 mm tool on a M16x1.5 castle nut (typical) stud; final torque is 37 ft-lbs (all generations) (upper ball joint nut). Front shock absorber lower mount bolt (gen2/gen3) tightens to 37 ft-lbs (Shock Module to Lower Control Arm — Gen2/Gen3 per FSM), takes a 18 mm driver, runs on M12x1.75 threads, located at the bottom of strut/shock, bolt to lower control arm or knuckle. The front shock absorber upper mount nuts (gen2/gen3 coil-over type) uses a 15 mm drive on a M10x1.5 (studs on upper mount) thread, torqued to 37 ft-lbs at the top of strut mount / upper shock mount to frame. At the bottom of rear shock absorber, bolt through rear axle housing bracket, the rear shock absorber lower bolt / nut torques to 85 ft-lbs (upper and lower, 1500 series per Merchant Auto 2007+ FSM); 70 ft-lbs (rear axle side per some Gen2 sources) (21 mm (bolt) + 21 mm (nut) drive, M12x1.75 thread). For the wheel studs, all four corners, plan for a 22mm (13/16") tool on a M14x1.5 stud; final torque is 140 ft-lbs (190 Nm) (lug nuts). Lower control arm pivot bolts (front, frame side) tightens to 129 ft-lbs (Gen1 1999-2006, Gen2 2007-2013); 133 ft-lbs + 60 degrees (Gen2 2007-2013 torsion-bar trucks — coil-spring trucks may differ), takes a 24 mm (nut); hold bolt driver, runs on M16x1.5 (front pivot); M16x1.5 (rear pivot) threads, located at the lower control arm front and rear pivot bolts to frame. The wheel bearing hub assembly bolts (to knuckle) uses a 21 mm drive on a M14x1.5 (14 mm bolt) thread, torqued to 133 ft-lbs (2007-2013 per Merchant Auto FSM); 75 ft-lbs (1999-2006 Gen1 per 1A Auto video; note: may be an earlier model value) at the front hub/bearing assembly 3 bolts to steering knuckle. At the upper control arm to frame bracket, the upper control arm pivot bolts (frame side) torques to 140 ft-lbs (Gen2 GMT900 / Gen3 K2XX) (24 mm (nut side); hold bolt head drive, M16x1.5 or M18 thread).

Steering — 2021 Chevrolet Silverado 1500

Steering linkage fasteners on the 2021 Chevrolet Silverado 1500. The steering gear box mounting bolt uses a 21mm drive on a M14 x 2.0 thread, torqued to 110 lb-ft at the frame rail. At the frame rail, the idler arm bolt torques to 60 lb-ft (18mm drive, M12 x 1.75 thread). For the steering gear/pump, plan for a 19mm tool on a M16 x 1.5 stud; final torque is 20 lb-ft (power steering hose fitting). Power steering pump mounting bolt tightens to 37 lb-ft, takes a 15mm driver, runs on M10 x 1.5 threads, located at the engine block/bracket. The pitman arm nut uses a 30mm drive on a M20 x 1.5 thread, torqued to 184 lb-ft at the steering gear output. At the pitman arm/knuckle, the drag link end nut torques to 44 lb-ft (21mm drive, M14 x 1.5 thread). For the steering column, plan for a 13mm tool on a M10 x 1.5 stud; final torque is 22 lb-ft (steering shaft pinch bolt). Steering column bracket bolt tightens to 18 lb-ft, takes a 13mm driver, runs on M10 x 1.5 threads, located at the dash/firewall.

Body — 2021 Chevrolet Silverado 1500

Body fasteners on the 2021 Chevrolet Silverado 1500. At the pickup box/bed to frame mounting bolts, the bed / box mount bolts torques to Approximately 50-60 ft-lbs (range cited by GM service community; exact FSM spec varies by year — use FSM for your VIN) (18 mm drive, M12x1.75 thread). For the cab-to-frame body mount bolts, rubber isolators (6 per side typically), plan for a 24 mm tool on a M16x1.5 or 5/8"-11 stud; final torque is 122 ft-lbs (165 Nm) (cab mount bolts).

Electrical — 2021 Chevrolet Silverado 1500

Electrical fasteners on the 2021 Chevrolet Silverado 1500. For the battery tray, plan for a 13mm tool on a M8 x 1.25 stud; final torque is 18 lb-ft (battery hold-down bolt). Wiring harness bracket bolt tightens to 80 lb-in, takes a 8mm driver, runs on M6 x 1.0 threads, located at the various locations. The license plate screw uses a 7mm drive on a 1/4-20 thread, torqued to 2 lb-ft at the rear bumper. At the battery post, the battery terminal bolt torques to 11 lb-ft (10mm drive, M8 x 1.25 thread). For the engine block/bracket, plan for a 15mm tool on a M10 x 1.5 stud; final torque is 37 lb-ft (alternator mounting bolt). Ground wire bolt tightens to 18 lb-ft, takes a 10mm driver, runs on M8 x 1.25 threads, located at the engine block/frame.

Engine - Top End — 2021 Chevrolet Silverado 1500

Engine - Top End fasteners on the 2021 Chevrolet Silverado 1500. Cylinder head bolt tightens to TTY: 22+90°, takes a 15mm driver, runs on M11 x 2.0 threads, located at the cylinder head. The egr valve bolt uses a 10mm drive on a M8 x 1.25 thread, torqued to 15 lb-ft at the intake manifold. At the intake manifold, the map sensor bolt torques to 70 lb-in (8mm drive, M6 x 1.0 thread). For the cylinder head/timing cover, plan for a 8mm tool on a M6 x 1.0 stud; final torque is 80 lb-in (camshaft position sensor bolt). Intake manifold bolt tightens to 89 lb-in, takes a 10mm driver, runs on M8 x 1.25 threads, located at the intake manifold. The pcv valve grommet bolt uses a 8mm drive on a M6 x 1.0 thread, torqued to 60 lb-in at the valve cover. At the valve cover, the ignition coil bolt torques to 70 lb-in (8mm drive, M6 x 1.0 thread). For the intake manifold, plan for a 8mm tool on a M6 x 1.0 stud; final torque is 89 lb-in (fuel rail bolt). Exhaust manifold bolt tightens to 18 lb-ft, takes a 13mm driver, runs on M8 x 1.25 threads, located at the exhaust manifold. The valve cover bolt uses a 10mm drive on a M8 x 1.25 thread, torqued to 106 lb-in at the valve cover. At the fuel rail, the fuel injector retainer bolt torques to 80 lb-in (8mm drive, M6 x 1.0 thread). For the throttle body/air box, plan for a 8mm tool on a M6 x 1.0 stud; final torque is 40 lb-in (air intake tube clamp). Spark plug tightens to 15 ft-lbs (20 Nm), takes a 5/8 in. (16mm) driver, runs on M14x1.25 threads, located at the cylinder head. The exhaust manifold stud uses a 13mm drive on a M8 x 1.25 thread, torqued to 15 lb-ft at the cylinder head. At the intake manifold, the throttle body bolt torques to 89 lb-in (8mm drive, M6 x 1.0 thread).

Exhaust System — 2021 Chevrolet Silverado 1500

Exhaust System fasteners on the 2021 Chevrolet Silverado 1500. The catalytic converter bolt uses a 15mm drive on a M10 x 1.5 thread, torqued to 37 lb-ft at the exhaust pipe flange. At the tailpipe connection, the tailpipe clamp bolt torques to 25 lb-ft (13mm drive, M8 x 1.25 thread). For the frame/body mount, plan for a 13mm tool on a M8 x 1.25 stud; final torque is 18 lb-ft (exhaust hanger bolt). Oxygen sensor tightens to 31 lb-ft, takes a 22mm driver, runs on M18 x 1.5 threads, located at the exhaust pipe. The muffler clamp bolt uses a 13mm drive on a M8 x 1.25 thread, torqued to 25 lb-ft at the muffler connection. At the exhaust manifold, the exhaust pipe flange bolt torques to 25 lb-ft (15mm drive, M10 x 1.5 thread).

Transmission — 2021 Chevrolet Silverado 1500

Transmission fasteners on the 2021 Chevrolet Silverado 1500. At the transmission case, the transmission cooler line fitting torques to 26 lb-ft (17mm drive, M14 x 1.5 thread). For the crossmember, plan for a 18mm tool on a M12 x 1.75 stud; final torque is 37 lb-ft (transmission mount bolt). Torque converter bolt tightens to 46 lb-ft, takes a 15mm driver, runs on M10 x 1.5 threads, located at the flexplate. The transmission vent tube bolt uses a 8mm drive on a M6 x 1.0 thread, torqued to 60 lb-in at the transmission top. At the bell housing, the transmission to engine bolt torques to 37 lb-ft (18mm drive, M12 x 1.75 thread). For the bell housing, plan for a 15mm tool on a M10 x 1.5 stud; final torque is 37 lb-ft (starter motor bolt). Transmission pan bolt tightens to 10 lb-ft, takes a 10mm driver, runs on M8 x 1.25 threads, located at the transmission pan. The park/neutral switch bolt uses a 8mm drive on a M6 x 1.0 thread, torqued to 80 lb-in at the transmission case. At the transmission shifter, the shift linkage bolt torques to 15 lb-ft (10mm drive, M8 x 1.25 thread). For the frame rail, plan for a 18mm tool on a M12 x 1.75 stud; final torque is 70 lb-ft (transmission crossmember bolt).

Wheels & Brakes — 2021 Chevrolet Silverado 1500

Wheels & Brakes fasteners on the 2021 Chevrolet Silverado 1500. For the wheel hub area, plan for a 8mm tool on a M6 x 1.0 stud; final torque is 60 lb-in (wheel speed sensor harness clip). Brake line banjo bolt tightens to 30 lb-ft, takes a 12mm driver, runs on M10 x 1.0 threads, located at the brake caliper. The abs sensor bolt uses a 8mm drive on a M6 x 1.0 thread, torqued to 80 lb-in at the wheel hub/knuckle. At the brake rotor, the brake rotor set screw torques to 35 lb-in (10mm drive, M8 x 1.25 thread). For the frame/suspension, plan for a 10mm tool on a M8 x 1.25 stud; final torque is 15 lb-ft (brake hose bracket bolt). Brake master cylinder mounting nut tightens to 20 lb-ft, takes a 13mm driver, runs on M10 x 1.5 threads, located at the firewall/booster. The brake caliper mounting bolt uses a 18mm drive on a M12x1.75 thread, torqued to 37 ft-lbs (50 Nm), then +30-45° (torque-to-yield — replace bolts) at the front/rear brake caliper. OEM-verified spec. At the wheels, the wheel lug nut torques to 140 ft-lbs (190 Nm) (22mm (13/16") drive, M14x1.5 thread). For the front/rear caliper bracket, plan for a 21mm tool on a M14x2.0 stud; final torque is 37 ft-lbs (50 Nm), then +30-45° (torque-to-yield — replace bolts) (brake caliper bracket bolt). This figure is independently verified against OEM service data. Parking brake cable bolt tightens to 18 lb-ft, takes a 13mm driver, runs on M8 x 1.25 threads, located at the rear caliper/drum.

Body & Cab — 2021 Chevrolet Silverado 1500

Body & Cab fasteners on the 2021 Chevrolet Silverado 1500. Cab mount bolt tightens to 74 lb-ft, takes a 18mm driver, runs on M12 x 1.75 threads, located at the cab to frame. The tow hook bolt uses a 18mm drive on a M12 x 1.75 thread, torqued to 50 lb-ft at the frame horn. At the bed rail to tailgate, the tailgate hinge bolt torques to 20 lb-ft (13mm drive, M8 x 1.25 thread). For the frame rail, plan for a 18mm tool on a M12 x 1.75 stud; final torque is 30 lb-ft (bumper mounting bolt - rear). Grille mounting clip tightens to Hand Tight, takes a None driver, runs on Push Clip threads, located at the radiator support. The radiator support bolt uses a 13mm drive on a M10 x 1.5 thread, torqued to 18 lb-ft at the frame horn. At the cab/frame, the running board mounting bolt torques to 35 lb-ft (13mm drive, M10 x 1.5 thread). For the door to cab pillar, plan for a 13mm tool on a M10 x 1.5 stud; final torque is 20 lb-ft (door hinge bolt). Skid plate bolt tightens to 18 lb-ft, takes a 13mm driver, runs on M8 x 1.25 threads, located at the frame rail. The bumper mounting bolt - front uses a 18mm drive on a M12 x 1.75 thread, torqued to 30 lb-ft at the frame horn. At the bed rail, the bed rail tie-down torques to 15 lb-ft (13mm drive, M8 x 1.25 thread). For the hood to fender, plan for a 13mm tool on a M10 x 1.5 stud; final torque is 18 lb-ft (hood hinge bolt). Door striker bolt tightens to 18 lb-ft, takes a 10mm driver, runs on M8 x 1.25 threads, located at the door jamb. The fender mounting bolt uses a 10mm drive on a M8 x 1.25 thread, torqued to 18 lb-ft at the fender to cab. At the bed to frame, the bed mounting bolt torques to 44 lb-ft (13mm drive, M10 x 1.5 thread).

Front Suspension — 2021 Chevrolet Silverado 1500

Front Suspension fasteners on the 2021 Chevrolet Silverado 1500. The upper control arm ball joint nut uses a 21mm drive on a M14 x 1.5 thread, torqued to 37 lb-ft at the steering knuckle. At the torsion bar crossmember, the torsion bar adjuster bolt torques to Variable (18mm drive, M12 x 1.75 thread). For the steering knuckle, plan for a 18mm tool on a M12 x 1.75 stud; final torque is 177 lb-ft (hub bearing retaining bolt). Stabilizer bar bracket bolt tightens to 37 lb-ft, takes a 13mm driver, runs on M10 x 1.5 threads, located at the frame rail. The steering knuckle to hub bolt uses a 18mm drive on a M12 x 1.75 thread, torqued to 133 lb-ft at the wheel hub. At the lower control arm, the shock absorber lower bolt torques to 59 lb-ft (18mm drive, M14 x 1.5 thread). For the upper shock mount, plan for a 13mm tool on a M10 x 1.5 stud; final torque is 18 lb-ft (shock absorber upper nut). Lower control arm ball joint nut tightens to 111 lb-ft, takes a 27mm driver, runs on M18 x 1.5 threads, located at the steering knuckle. The lower control arm frame bolt uses a 21mm drive on a M14 x 2.0 thread, torqued to 107 lb-ft at the frame bracket. At the steering knuckle, the tie rod end nut torques to 44 lb-ft (21mm drive, M14 x 1.5 thread). For the sway bar to control arm, plan for a 18mm tool on a M10 x 1.5 stud; final torque is 17 lb-ft (stabilizer bar link nut). Upper control arm frame bolt tightens to 140 lb-ft, takes a 21mm driver, runs on M14 x 2.0 threads, located at the frame bracket.

Engine - Bottom End — 2021 Chevrolet Silverado 1500

Engine - Bottom End fasteners on the 2021 Chevrolet Silverado 1500. At the engine block/timing cover, the crankshaft position sensor bolt torques to 80 lb-in (8mm drive, M6 x 1.0 thread). For the engine block to frame, plan for a 18mm tool on a M12 x 1.75 stud; final torque is 59 lb-ft (engine mount bolt - front). Oil pan bolt tightens to 18 lb-ft, takes a 10mm driver, runs on M8 x 1.25 threads, located at the oil pan. The thermostat housing bolt uses a 10mm drive on a M8 x 1.25 thread, torqued to 11 lb-ft at the intake manifold/block. At the timing cover, the water pump bolt torques to 11 lb-ft (10mm drive, M8 x 1.25 thread). For the crankshaft, plan for a 24mm tool on a M16 x 2.0 stud; final torque is TTY: 37+140° (crankshaft pulley bolt). Engine mount bolt - rear tightens to 37 lb-ft, takes a 18mm driver, runs on M12 x 1.75 threads, located at the transmission to crossmember. The knock sensor bolt uses a 12mm drive on a M8 x 1.25 thread, torqued to 18 lb-ft at the engine block. At the oil pan, the oil drain plug torques to 18 ft-lbs (25 Nm) (15mm drive, M12x1.75 thread). This figure is independently verified against OEM service data. For the engine block, plan for a 10mm tool on a M8 x 1.25 stud; final torque is 18 lb-ft (timing chain cover bolt). Flywheel bolt tightens to TTY: 15+60°, takes a 15mm driver, runs on M12 x 1.75 threads, located at the crankshaft. The oil filter adapter bolt uses a 10mm drive on a M8 x 1.25 thread, torqued to 18 lb-ft at the engine block.

Rear Suspension — 2021 Chevrolet Silverado 1500

Rear Suspension fasteners on the 2021 Chevrolet Silverado 1500. For the rear spring shackle, plan for a 21mm tool on a M14 x 2.0 stud; final torque is 70 lb-ft (leaf spring rear shackle bolt). Track bar frame bolt tightens to 110 lb-ft, takes a 21mm driver, runs on M14 x 2.0 threads, located at the frame rail. The rear axle vent tube bolt uses a 8mm drive on a M6 x 1.0 thread, torqued to 60 lb-in at the axle housing. At the frame rail, the rear stabilizer bar bracket bolt torques to 37 lb-ft (15mm drive, M10 x 1.5 thread). For the front spring hanger, plan for a 21mm tool on a M14 x 2.0 stud; final torque is 95 lb-ft (leaf spring front eye bolt). Rear shock absorber lower bolt tightens to 70 lb-ft, takes a 18mm driver, runs on M12 x 1.75 threads, located at the axle bracket. The leaf spring u-bolt uses a 5/8 inch drive on a 7/16-20 thread, torqued to 52 lb-ft at the axle to spring. At the rear axle, the track bar axle bolt torques to 110 lb-ft (21mm drive, M14 x 2.0 thread). For the frame rail, plan for a 18mm tool on a M12 x 1.75 stud; final torque is 70 lb-ft (rear shock absorber upper bolt). Rear stabilizer bar link bolt tightens to 44 lb-ft, takes a 15mm driver, runs on M10 x 1.5 threads, located at the axle to sway bar.

Interior — 2021 Chevrolet Silverado 1500

Interior fasteners on the 2021 Chevrolet Silverado 1500. Seat mounting bolt tightens to 37 lb-ft, takes a 13mm driver, runs on M10 x 1.5 threads, located at the seat track to floor. The sun visor screw uses a 8mm drive on a M6 x 1.0 thread, torqued to Hand Tight at the headliner. At the dashboard, the glove box hinge screw torques to Hand Tight (8mm drive, M6 x 1.0 thread). For the b-pillar/floor, plan for a 18mm tool on a M12 x 1.75 stud; final torque is 37 lb-ft (seat belt anchor bolt). Center console bolt tightens to 80 lb-in, takes a 8mm driver, runs on M6 x 1.0 threads, located at the floor/tunnel. The floor mat clip uses a None drive on a Push Clip thread, torqued to Hand Tight at the floor pan. At the dash to firewall, the dashboard mounting bolt torques to 18 lb-ft (10mm drive, M8 x 1.25 thread). For the steering column, plan for a 24mm tool on a M14x1.5 stud; final torque is 140 ft-lbs (190 Nm) (steering wheel nut).

New to torquing wheels? Read our How lug nut torque works — the complete guide for star-pattern sequence, re-torque intervals, and how to read a lug spec — then use the 2021 Chevrolet Silverado 1500 numbers above.

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