2025 Chevrolet Silverado 3500 Hd Srw Lug Nut Torque & Bolt Specs

The 2025 Chevrolet Silverado 3500 Hd Srw lug nut torque is 140 ft-lbs (190 Nm), tightened with a 15mm socket on M12 x 1.75 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: 15mm · Thread: M12 x 1.75.

This page is the OEM-referenced fastener summary for the 2025 Chevrolet Silverado 3500 Hd Srw. 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 2025 Chevrolet Silverado 3500 Hd Srw

Repair guidance for this model year

For 2025 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

Frequently asked questions

What is the lug nut torque on a 2025 Chevrolet Silverado 3500 Hd Srw?

The OEM-specified lug-nut torque for the 2025 Chevrolet Silverado 3500 Hd Srw is 140 ft-lbs (190 Nm), using a 15mm socket on M12 x 1.75 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 2025 Chevrolet Silverado 3500 Hd Srw lug nuts?

The 2025 Chevrolet Silverado 3500 Hd Srw uses a 15mm 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 2025 Chevrolet Silverado 3500 Hd Srw 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 3500 Hd Srw years

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

→ 2025 Chevrolet Silverado 3500 Hd Srw suspension & steering torque specs (control arm, ball joint, tie rod)

→ 2025 Chevrolet Silverado 3500 Hd Srw engine & transmission mount torque specs

All 120 2025 Chevrolet Silverado 3500 Hd Srw fastener specs

Per-bolt torque, wrench size, and thread spec for the 2025 Chevrolet Silverado 3500 Hd Srw, sourced from OEM service literature and verified against community shop data. Values pair imperial (ft-lb) and metric (Nm) where the manufacturer publishes both. 1 of the 120 fastener specs on this page are independently verified against OEM service manuals and manufacturer torque data (last reviewed June 2026).

Drivetrain — 2025 Chevrolet Silverado 3500 Hd Srw

Drivetrain and driveline fasteners for the 2025 Chevrolet Silverado 3500 Hd Srw — axle, transmission, and differential plugs. For the frame crossmember, plan for a 13mm tool on a M10 x 1.5 stud; final torque is 37 lb-ft (driveshaft center support bearing 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 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 differential cover, the differential cover bolt torques to 25 lb-ft (13mm drive, M10 x 1.5 thread). For the front axle housing, plan for a 10mm tool on a M8 x 1.25 stud; final torque is 18 lb-ft (front differential actuator bolt). 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 transfer case drain plug uses a 15mm drive on a M14 x 1.5 thread, torqued to 25 lb-ft at the transfer case. At the differential housing, the differential fill plug torques to 24 lb-ft (3/8 inch drive, 3/8-18 NPT thread).

Steering — 2025 Chevrolet Silverado 3500 Hd Srw

Steering linkage fasteners on the 2025 Chevrolet Silverado 3500 Hd Srw. Power steering hose fitting tightens to 20 lb-ft, takes a 19mm driver, runs on M16 x 1.5 threads, located at the steering gear/pump. The steering column bracket bolt uses a 13mm drive on a M10 x 1.5 thread, torqued to 18 lb-ft at the dash/firewall. At the frame rail, the idler arm bolt torques to 60 lb-ft (18mm drive, M12 x 1.75 thread). For the pitman arm/knuckle, plan for a 21mm tool on a M14 x 1.5 stud; final torque is 44 lb-ft (drag link end nut). 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 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 column, the steering shaft pinch bolt torques to 22 lb-ft (13mm drive, M10 x 1.5 thread). For the steering gear output, plan for a 30mm tool on a M20 x 1.5 stud; final torque is 184 lb-ft (pitman arm nut).

Electrical — 2025 Chevrolet Silverado 3500 Hd Srw

Electrical fasteners on the 2025 Chevrolet Silverado 3500 Hd Srw. 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 various locations, the wiring harness bracket bolt torques to 80 lb-in (8mm drive, M6 x 1.0 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). Battery terminal bolt tightens to 11 lb-ft, takes a 10mm driver, runs on M8 x 1.25 threads, located at the battery post. The ground wire bolt uses a 10mm drive on a M8 x 1.25 thread, torqued to 18 lb-ft at the engine block/frame. At the rear bumper, the license plate screw torques to 2 lb-ft (7mm drive, 1/4-20 thread).

Exhaust System — 2025 Chevrolet Silverado 3500 Hd Srw

Exhaust System fasteners on the 2025 Chevrolet Silverado 3500 Hd Srw. At the muffler connection, the muffler clamp bolt torques to 25 lb-ft (13mm drive, M8 x 1.25 thread). For the tailpipe connection, plan for a 13mm tool on a M8 x 1.25 stud; final torque is 25 lb-ft (tailpipe clamp bolt). Exhaust hanger bolt tightens to 18 lb-ft, takes a 13mm driver, runs on M8 x 1.25 threads, located at the frame/body mount. The oxygen sensor uses a 22mm drive on a M18 x 1.5 thread, torqued to 31 lb-ft at the exhaust pipe. At the exhaust manifold, the exhaust pipe flange bolt torques to 25 lb-ft (15mm drive, M10 x 1.5 thread). For the exhaust pipe flange, plan for a 15mm tool on a M10 x 1.5 stud; final torque is 37 lb-ft (catalytic converter bolt).

Engine - Top End — 2025 Chevrolet Silverado 3500 Hd Srw

Engine - Top End fasteners on the 2025 Chevrolet Silverado 3500 Hd Srw. For the fuel rail, plan for a 8mm tool on a M6 x 1.0 stud; final torque is 80 lb-in (fuel injector retainer bolt). Ignition coil bolt tightens to 70 lb-in, takes a 8mm driver, runs on M6 x 1.0 threads, located at the valve cover. The camshaft position sensor bolt uses a 8mm drive on a M6 x 1.0 thread, torqued to 80 lb-in at the cylinder head/timing cover. At the intake manifold, the egr valve bolt torques to 15 lb-ft (10mm drive, M8 x 1.25 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). 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 intake manifold, the map sensor bolt torques to 70 lb-in (8mm drive, M6 x 1.0 thread). For the intake manifold, plan for a 10mm tool on a M8 x 1.25 stud; final torque is 89 lb-in (intake manifold bolt). Fuel rail bolt tightens to 89 lb-in, takes a 8mm driver, runs on M6 x 1.0 threads, located at the intake 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 valve cover, the pcv valve grommet bolt torques to 60 lb-in (8mm drive, M6 x 1.0 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). Valve cover bolt tightens to 106 lb-in, takes a 10mm driver, runs on M8 x 1.25 threads, located at the valve cover. The exhaust manifold bolt uses a 13mm drive on a M8 x 1.25 thread, torqued to 18 lb-ft at the exhaust manifold.

Wheels & Brakes — 2025 Chevrolet Silverado 3500 Hd Srw

Wheels & Brakes fasteners on the 2025 Chevrolet Silverado 3500 Hd Srw. 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. 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 rear caliper/drum, the parking brake cable bolt torques to 18 lb-ft (13mm drive, M8 x 1.25 thread). For the firewall/booster, plan for a 13mm tool on a M10 x 1.5 stud; final torque is 20 lb-ft (brake master cylinder mounting nut). Brake caliper bracket bolt tightens to 140 lb-ft, takes a 21mm driver, runs on M14x2.0 threads, located at the front/rear caliper bracket. The wheel lug nut uses a 21mm drive on a M14x1.5 thread, torqued to 140 ft-lbs (190 Nm) at the wheels. At the front/rear brake caliper, the brake caliper mounting bolt torques to 80 lb-ft (18mm drive, M12x1.75 thread). For the brake caliper, plan for a 12mm tool on a M10 x 1.0 stud; final torque is 30 lb-ft (brake line banjo bolt). 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 wheel speed sensor harness clip uses a 8mm drive on a M6 x 1.0 thread, torqued to 60 lb-in at the wheel hub area.

Body & Cab — 2025 Chevrolet Silverado 3500 Hd Srw

Body & Cab fasteners on the 2025 Chevrolet Silverado 3500 Hd Srw. The bumper mounting bolt - rear uses a 18mm drive on a M12 x 1.75 thread, torqued to 30 lb-ft at the frame 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 rail, plan for a 13mm tool on a M8 x 1.25 stud; final torque is 18 lb-ft (skid plate bolt). Bed mounting bolt tightens to 44 lb-ft, takes a 13mm driver, runs on M10 x 1.5 threads, located at the bed 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 frame horn, the bumper mounting bolt - front torques to 30 lb-ft (18mm drive, M12 x 1.75 thread). For the cab/frame, plan for a 13mm tool on a M10 x 1.5 stud; final torque is 35 lb-ft (running board mounting bolt). Tailgate hinge bolt tightens to 20 lb-ft, takes a 13mm driver, runs on M8 x 1.25 threads, located at the bed rail to tailgate. 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 frame horn, the radiator support bolt torques to 18 lb-ft (13mm drive, M10 x 1.5 thread). For the radiator support, plan for a None tool on a Push Clip stud; final torque is Hand Tight (grille mounting clip). Hood hinge bolt tightens to 18 lb-ft, takes a 13mm driver, runs on M10 x 1.5 threads, located at the hood to fender. 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 door to cab pillar, the door hinge bolt torques to 20 lb-ft (13mm drive, M10 x 1.5 thread). For the door jamb, plan for a 10mm tool on a M8 x 1.25 stud; final torque is 18 lb-ft (door striker bolt).

Rear Suspension — 2025 Chevrolet Silverado 3500 Hd Srw

Rear Suspension fasteners on the 2025 Chevrolet Silverado 3500 Hd Srw. 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 21mm tool on a M14 x 2.0 stud; final torque is 110 lb-ft (track bar frame 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 axle to sway bar, the rear stabilizer bar link bolt torques to 44 lb-ft (15mm drive, M10 x 1.5 thread). For the axle housing, plan for a 8mm tool on a M6 x 1.0 stud; final torque is 60 lb-in (rear axle vent tube bolt). Rear stabilizer bar bracket bolt tightens to 37 lb-ft, takes a 15mm driver, runs on M10 x 1.5 threads, located at the frame rail. The leaf spring front eye bolt uses a 21mm drive on a M14 x 2.0 thread, torqued to 95 lb-ft at the front spring hanger. At the frame rail, the rear shock absorber upper bolt torques to 70 lb-ft (18mm drive, M12 x 1.75 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).

Transmission — 2025 Chevrolet Silverado 3500 Hd Srw

Transmission fasteners on the 2025 Chevrolet Silverado 3500 Hd Srw. For the transmission case, plan for a 17mm tool on a M14 x 1.5 stud; final torque is 26 lb-ft (transmission cooler line fitting). Transmission to engine bolt tightens to 37 lb-ft, takes a 18mm driver, runs on M12 x 1.75 threads, located at the bell housing. The transmission mount bolt uses a 18mm drive on a M12 x 1.75 thread, torqued to 37 lb-ft at the crossmember. At the transmission pan, the transmission pan bolt torques to 10 lb-ft (10mm drive, M8 x 1.25 thread). For the flexplate, plan for a 15mm tool on a M10 x 1.5 stud; final torque is 46 lb-ft (torque converter bolt). Shift linkage bolt tightens to 15 lb-ft, takes a 10mm driver, runs on M8 x 1.25 threads, located at the transmission shifter. 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 park/neutral switch bolt torques to 80 lb-in (8mm drive, M6 x 1.0 thread). For the transmission top, plan for a 8mm tool on a M6 x 1.0 stud; final torque is 60 lb-in (transmission vent tube 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.

Interior — 2025 Chevrolet Silverado 3500 Hd Srw

Interior fasteners on the 2025 Chevrolet Silverado 3500 Hd Srw. 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 dashboard mounting bolt uses a 10mm drive on a M8 x 1.25 thread, torqued to 18 lb-ft at the dash to firewall. At the headliner, the sun visor screw torques to Hand Tight (8mm drive, M6 x 1.0 thread). For the floor pan, plan for a None tool on a Push Clip stud; final torque is Hand Tight (floor mat clip). Steering wheel nut tightens to 140 ft-lbs (190 Nm), takes a 24mm driver, runs on M14x1.5 threads, located at the steering column. 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 dashboard, the glove box hinge screw torques to Hand Tight (8mm drive, M6 x 1.0 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).

Front Suspension — 2025 Chevrolet Silverado 3500 Hd Srw

Front Suspension fasteners on the 2025 Chevrolet Silverado 3500 Hd Srw. 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 lower control arm, the shock absorber lower bolt torques to 59 lb-ft (18mm drive, M14 x 1.5 thread). For the frame bracket, plan for a 21mm tool on a M14 x 2.0 stud; final torque is 140 lb-ft (upper control arm frame bolt). 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 hub bearing retaining bolt uses a 18mm drive on a M12 x 1.75 thread, torqued to 177 lb-ft at the steering knuckle. At the frame bracket, the lower control arm frame bolt torques to 107 lb-ft (21mm drive, M14 x 2.0 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). Shock absorber upper nut tightens to 18 lb-ft, takes a 13mm driver, runs on M10 x 1.5 threads, located at the upper shock mount. 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 frame rail, the stabilizer bar bracket bolt torques to 37 lb-ft (13mm drive, M10 x 1.5 thread). For the torsion bar crossmember, plan for a 18mm tool on a M12 x 1.75 stud; final torque is Variable (torsion bar adjuster bolt). Tie rod end nut tightens to 44 lb-ft, takes a 21mm driver, runs on M14 x 1.5 threads, located at the steering knuckle.

Engine - Bottom End — 2025 Chevrolet Silverado 3500 Hd Srw

Engine - Bottom End fasteners on the 2025 Chevrolet Silverado 3500 Hd Srw. At the engine block to frame, the engine mount bolt - front torques to 59 lb-ft (18mm drive, M12 x 1.75 thread). For the oil pan, plan for a 10mm tool on a M8 x 1.25 stud; final torque is 18 lb-ft (oil pan 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 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 oil pan, plan for a 15mm tool on a M12x1.75 stud; final torque is 18 ft-lbs (25 Nm) (oil drain plug). Thermostat housing bolt tightens to 11 lb-ft, takes a 10mm driver, runs on M8 x 1.25 threads, located at the intake manifold/block. 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. At the crankshaft, the crankshaft pulley bolt torques to TTY: 37+140° (24mm drive, M16 x 2.0 thread). For the timing cover, plan for a 10mm tool on a M8 x 1.25 stud; final torque is 11 lb-ft (water pump bolt). 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 flywheel bolt uses a 15mm drive on a M12 x 1.75 thread, torqued to 140 ft-lbs (190 Nm) at the crankshaft. This figure is independently verified against OEM service data.

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 2025 Chevrolet Silverado 3500 Hd Srw numbers above.

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