2026 Chevrolet Silverado 2500 Hd Lug Nut Torque & Bolt Specs

The 2026 Chevrolet Silverado 2500 Hd lug nut torque is 140 ft-lbs (190 Nm), tightened with a 21mm 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: 21mm · Thread: M14x1.5.

This page is the OEM-referenced fastener summary for the 2026 Chevrolet Silverado 2500 Hd. 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.

Common fastener categories on the 2026 Chevrolet Silverado 2500 Hd

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 2026 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 2026 Chevrolet Silverado 2500 Hd?

The OEM-specified lug-nut torque for the 2026 Chevrolet Silverado 2500 Hd is 140 ft-lbs (190 Nm), using a 21mm 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 2026 Chevrolet Silverado 2500 Hd lug nuts?

The 2026 Chevrolet Silverado 2500 Hd uses a 21mm 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 2026 Chevrolet Silverado 2500 Hd 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 2500 Hd years

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

→ 2026 Chevrolet Silverado 2500 Hd suspension & steering torque specs (control arm, ball joint, tie rod)

→ 2026 Chevrolet Silverado 2500 Hd engine & transmission mount torque specs

All 120 2026 Chevrolet Silverado 2500 Hd fastener specs

Per-bolt torque, wrench size, and thread spec for the 2026 Chevrolet Silverado 2500 Hd, sourced from OEM service literature and verified against community shop data. Values pair imperial (ft-lb) and metric (Nm) where the manufacturer publishes both.

Drivetrain — 2026 Chevrolet Silverado 2500 Hd

Drivetrain and driveline fasteners for the 2026 Chevrolet Silverado 2500 Hd — axle, transmission, and differential plugs. Differential cover bolt tightens to 25 lb-ft, takes a 13mm driver, runs on M10 x 1.5 threads, located at the differential cover. The driveshaft u-joint strap bolt uses a 1/2 inch drive on a 5/16-18 thread, torqued to 15 lb-ft at the driveshaft yoke. At the frame crossmember, the driveshaft center support bearing bolt torques to 37 lb-ft (13mm drive, M10 x 1.5 thread). For the transmission/transfer case, plan for a 18mm tool on a M12 x 1.75 stud; final torque is 37 lb-ft (transfer case mounting bolt). Differential drain plug tightens to 24 lb-ft, takes a 3/8 inch driver, runs on 3/8-18 NPT threads, located at the differential housing. 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 differential housing, the differential fill plug torques to 24 lb-ft (3/8 inch drive, 3/8-18 NPT thread). For the transfer case, plan for a 15mm tool on a M14 x 1.5 stud; final torque is 25 lb-ft (transfer case drain plug).

Steering — 2026 Chevrolet Silverado 2500 Hd

Steering linkage fasteners on the 2026 Chevrolet Silverado 2500 Hd. 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 frame rail, the idler arm bolt torques to 60 lb-ft (18mm drive, M12 x 1.75 thread). For the engine block/bracket, plan for a 15mm tool on a M10 x 1.5 stud; final torque is 37 lb-ft (power steering pump mounting bolt). Drag link end nut tightens to 44 lb-ft, takes a 21mm driver, runs on M14 x 1.5 threads, located at the pitman arm/knuckle. 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 steering gear/pump, the power steering hose fitting torques to 20 lb-ft (19mm drive, M16 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.

Electrical — 2026 Chevrolet Silverado 2500 Hd

Electrical fasteners on the 2026 Chevrolet Silverado 2500 Hd. At the engine block/frame, the ground wire bolt torques to 18 lb-ft (10mm drive, M8 x 1.25 thread). For the battery post, plan for a 10mm tool on a M8 x 1.25 stud; final torque is 11 lb-ft (battery terminal bolt). License plate screw tightens to 2 lb-ft, takes a 7mm driver, runs on 1/4-20 threads, located at the rear bumper. The battery hold-down bolt uses a 13mm drive on a M8 x 1.25 thread, torqued to 18 lb-ft at the battery tray. At the engine block/bracket, the alternator mounting bolt torques to 37 lb-ft (15mm drive, M10 x 1.5 thread). For the various locations, plan for a 8mm tool on a M6 x 1.0 stud; final torque is 80 lb-in (wiring harness bracket bolt).

Rear Suspension — 2026 Chevrolet Silverado 2500 Hd

Rear Suspension fasteners on the 2026 Chevrolet Silverado 2500 Hd. For the frame rail, plan for a 15mm tool on a M10 x 1.5 stud; final torque is 37 lb-ft (rear stabilizer bar bracket bolt). Rear shock absorber upper bolt tightens to 70 lb-ft, takes a 18mm driver, runs on M12 x 1.75 threads, located at the frame rail. The track bar axle bolt uses a 21mm drive on a M14 x 2.0 thread, torqued to 110 lb-ft at the rear axle. At the frame rail, the track bar frame bolt torques to 110 lb-ft (21mm drive, M14 x 2.0 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 axle vent tube bolt tightens to 60 lb-in, takes a 8mm driver, runs on M6 x 1.0 threads, located at the axle housing. The rear shock absorber lower bolt uses a 18mm drive on a M12 x 1.75 thread, torqued to 70 lb-ft at the axle bracket. At the axle to spring, the leaf spring u-bolt torques to 52 lb-ft (5/8 inch drive, 7/16-20 thread). 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). 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.

Engine - Bottom End — 2026 Chevrolet Silverado 2500 Hd

Engine - Bottom End fasteners on the 2026 Chevrolet Silverado 2500 Hd. 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 oil drain plug uses a 15mm drive on a M12x1.75 thread, torqued to 18 ft-lbs (25 Nm) at the oil pan. At the engine block, the oil filter adapter bolt torques to 18 lb-ft (10mm drive, M8 x 1.25 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). Timing chain cover bolt tightens to 18 lb-ft, takes a 10mm driver, runs on M8 x 1.25 threads, located at the engine block. The crankshaft position sensor bolt uses a 8mm drive on a M6 x 1.0 thread, torqued to 80 lb-in at the engine block/timing cover. At the engine block, the knock sensor bolt torques to 18 lb-ft (12mm drive, M8 x 1.25 thread). For the crankshaft, plan for a 15mm tool on a M12 x 1.75 stud; final torque is TTY: 15+60° (flywheel bolt). Water pump bolt tightens to 11 lb-ft, takes a 10mm driver, runs on M8 x 1.25 threads, located at the timing cover. The oil pan bolt uses a 10mm drive on a M8 x 1.25 thread, torqued to 18 lb-ft at the oil pan. At the intake manifold/block, the thermostat housing 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).

Transmission — 2026 Chevrolet Silverado 2500 Hd

Transmission fasteners on the 2026 Chevrolet Silverado 2500 Hd. The torque converter bolt uses a 15mm drive on a M10 x 1.5 thread, torqued to 46 lb-ft at the flexplate. At the transmission top, the transmission vent tube bolt torques to 60 lb-in (8mm drive, M6 x 1.0 thread). For the transmission shifter, plan for a 10mm tool on a M8 x 1.25 stud; final torque is 15 lb-ft (shift linkage bolt). Starter motor bolt tightens to 37 lb-ft, takes a 15mm driver, runs on M10 x 1.5 threads, located at the bell housing. The transmission to engine bolt uses a 18mm drive on a M12 x 1.75 thread, torqued to 37 lb-ft at the bell housing. At the transmission pan, the transmission pan bolt torques to 10 lb-ft (10mm drive, M8 x 1.25 thread). For the transmission case, plan for a 8mm tool on a M6 x 1.0 stud; final torque is 80 lb-in (park/neutral switch bolt). Transmission mount bolt tightens to 37 lb-ft, takes a 18mm driver, runs on M12 x 1.75 threads, located at the crossmember. The transmission crossmember bolt uses a 18mm drive on a M12 x 1.75 thread, torqued to 70 lb-ft at the frame rail. At the transmission case, the transmission cooler line fitting torques to 26 lb-ft (17mm drive, M14 x 1.5 thread).

Body & Cab — 2026 Chevrolet Silverado 2500 Hd

Body & Cab fasteners on the 2026 Chevrolet Silverado 2500 Hd. At the door jamb, the door striker bolt torques to 18 lb-ft (10mm drive, M8 x 1.25 thread). For the radiator support, plan for a None tool on a Push Clip stud; final torque is Hand Tight (grille mounting clip). Bumper mounting bolt - front tightens to 30 lb-ft, takes a 18mm driver, runs on M12 x 1.75 threads, located at the frame horn. The skid plate bolt uses a 13mm drive on a M8 x 1.25 thread, torqued to 18 lb-ft at the frame rail. At the frame rail, the bumper mounting bolt - rear torques to 30 lb-ft (18mm drive, M12 x 1.75 thread). For the bed rail to tailgate, plan for a 13mm tool on a M8 x 1.25 stud; final torque is 20 lb-ft (tailgate hinge bolt). Door hinge bolt tightens to 20 lb-ft, takes a 13mm driver, runs on M10 x 1.5 threads, located at the door to cab pillar. The bed mounting bolt uses a 13mm drive on a M10 x 1.5 thread, torqued to 44 lb-ft at the bed to frame. At the hood to fender, the hood hinge bolt torques to 18 lb-ft (13mm drive, M10 x 1.5 thread). For the fender to cab, plan for a 10mm tool on a M8 x 1.25 stud; final torque is 18 lb-ft (fender mounting bolt). Radiator support bolt tightens to 18 lb-ft, takes a 13mm driver, runs on M10 x 1.5 threads, located at the frame horn. The bed rail tie-down uses a 13mm drive on a M8 x 1.25 thread, torqued to 15 lb-ft at the bed rail. At the cab to frame, the cab mount bolt torques to 74 lb-ft (18mm drive, M12 x 1.75 thread). For the frame horn, plan for a 18mm tool on a M12 x 1.75 stud; final torque is 50 lb-ft (tow hook bolt). Running board mounting bolt tightens to 35 lb-ft, takes a 13mm driver, runs on M10 x 1.5 threads, located at the cab/frame.

Wheels & Brakes — 2026 Chevrolet Silverado 2500 Hd

Wheels & Brakes fasteners on the 2026 Chevrolet Silverado 2500 Hd. For the wheels, plan for a 21mm tool on a M14x1.5 stud; final torque is 140 ft-lbs (190 Nm) (wheel lug nut). 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 parking brake cable bolt uses a 13mm drive on a M8 x 1.25 thread, torqued to 18 lb-ft at the rear caliper/drum. At the front/rear caliper bracket, the brake caliper bracket bolt torques to 140 lb-ft (21mm drive, M14x2.0 thread). 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 hose bracket bolt tightens to 15 lb-ft, takes a 10mm driver, runs on M8 x 1.25 threads, located at the frame/suspension. The brake master cylinder mounting nut uses a 13mm drive on a M10 x 1.5 thread, torqued to 20 lb-ft at the firewall/booster. At the wheel hub/knuckle, the abs sensor bolt torques to 80 lb-in (8mm drive, M6 x 1.0 thread). For the front/rear brake caliper, plan for a 18mm tool on a M12x1.75 stud; final torque is 80 lb-ft (brake caliper mounting bolt). Brake rotor set screw tightens to 35 lb-in, takes a 10mm driver, runs on M8 x 1.25 threads, located at the brake rotor.

Engine - Top End — 2026 Chevrolet Silverado 2500 Hd

Engine - Top End fasteners on the 2026 Chevrolet Silverado 2500 Hd. Pcv valve grommet bolt tightens to 60 lb-in, takes a 8mm driver, runs on M6 x 1.0 threads, located at the valve cover. The fuel rail bolt uses a 8mm drive on a M6 x 1.0 thread, torqued to 89 lb-in at the intake manifold. At the intake manifold, the egr valve bolt torques to 15 lb-ft (10mm drive, M8 x 1.25 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). 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 spark plug uses a 16mm drive on a M14 x 1.25 thread, torqued to 11 lb-ft at the cylinder head. At the valve cover, the valve cover bolt torques to 106 lb-in (10mm drive, M8 x 1.25 thread). For the cylinder head, plan for a 13mm tool on a M8 x 1.25 stud; final torque is 15 lb-ft (exhaust manifold stud). 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 throttle body bolt uses a 8mm drive on a M6 x 1.0 thread, torqued to 89 lb-in at the intake manifold. At the fuel rail, the fuel injector retainer bolt torques to 80 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 70 lb-in (map 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 ignition coil bolt uses a 8mm drive on a M6 x 1.0 thread, torqued to 70 lb-in at the valve cover. At the throttle body/air box, the air intake tube clamp torques to 40 lb-in (8mm drive, M6 x 1.0 thread).

Interior — 2026 Chevrolet Silverado 2500 Hd

Interior fasteners on the 2026 Chevrolet Silverado 2500 Hd. The seat belt anchor bolt uses a 18mm drive on a M12 x 1.75 thread, torqued to 37 lb-ft at the b-pillar/floor. At the seat track to floor, the seat mounting bolt torques to 37 lb-ft (13mm drive, M10 x 1.5 thread). For the floor/tunnel, plan for a 8mm tool on a M6 x 1.0 stud; final torque is 80 lb-in (center console bolt). Floor mat clip tightens to Hand Tight, takes a None driver, runs on Push Clip threads, located at the floor pan. The steering wheel nut uses a 24mm drive on a M14x1.5 thread, torqued to 140 ft-lbs (190 Nm) at the steering column. At the dashboard, the glove box hinge screw torques to Hand Tight (8mm drive, M6 x 1.0 thread). For the headliner, plan for a 8mm tool on a M6 x 1.0 stud; final torque is Hand Tight (sun visor screw). Dashboard mounting bolt tightens to 18 lb-ft, takes a 10mm driver, runs on M8 x 1.25 threads, located at the dash to firewall.

Front Suspension — 2026 Chevrolet Silverado 2500 Hd

Front Suspension fasteners on the 2026 Chevrolet Silverado 2500 Hd. At the frame bracket, the upper control arm frame bolt torques to 140 lb-ft (21mm drive, M14 x 2.0 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). Steering knuckle to hub bolt tightens to 133 lb-ft, takes a 18mm driver, runs on M12 x 1.75 threads, located at the wheel hub. The stabilizer bar bracket bolt uses a 13mm drive on a M10 x 1.5 thread, torqued to 37 lb-ft at the frame rail. At the lower control arm, the shock absorber lower bolt torques to 59 lb-ft (18mm drive, M14 x 1.5 thread). For the steering knuckle, plan for a 21mm tool on a M14 x 1.5 stud; final torque is 44 lb-ft (tie rod end nut). Stabilizer bar link nut tightens to 17 lb-ft, takes a 18mm driver, runs on M10 x 1.5 threads, located at the sway bar to control arm. The lower control arm ball joint nut uses a 27mm drive on a M18 x 1.5 thread, torqued to 111 lb-ft at the steering knuckle. At the steering knuckle, the hub bearing retaining bolt torques to 177 lb-ft (18mm drive, M12 x 1.75 thread). For the frame bracket, plan for a 21mm tool on a M14 x 2.0 stud; final torque is 107 lb-ft (lower control arm frame bolt). Upper control arm ball joint nut tightens to 37 lb-ft, takes a 21mm driver, runs on M14 x 1.5 threads, located at the steering knuckle. The torsion bar adjuster bolt uses a 18mm drive on a M12 x 1.75 thread, torqued to Variable at the torsion bar crossmember.

Exhaust System — 2026 Chevrolet Silverado 2500 Hd

Exhaust System fasteners on the 2026 Chevrolet Silverado 2500 Hd. For the muffler connection, plan for a 13mm tool on a M8 x 1.25 stud; final torque is 25 lb-ft (muffler clamp 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 tailpipe clamp bolt uses a 13mm drive on a M8 x 1.25 thread, torqued to 25 lb-ft at the tailpipe connection. At the exhaust manifold, the exhaust pipe flange bolt torques to 25 lb-ft (15mm drive, M10 x 1.5 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). Catalytic converter bolt tightens to 37 lb-ft, takes a 15mm driver, runs on M10 x 1.5 threads, located at the exhaust pipe flange.

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 2026 Chevrolet Silverado 2500 Hd numbers above.

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