2004 Chevrolet Silverado 2500 Hd Lug Nut Torque & Bolt Specs

The 2004 Chevrolet Silverado 2500 Hd lug nut torque is TTY: 15+60°, 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: TTY: 15+60° · Socket size: 15mm · Thread: M12 x 1.75.

This page is the OEM-referenced fastener summary for the 2004 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 2004 Chevrolet Silverado 2500 Hd

Repair guidance for this model year

For 2004 model-year work: Always use a calibrated torque wrench for safety-critical fasteners, and replace lock washers and crush washers on every reassembly.

Tools you will need

Frequently asked questions

What is the lug nut torque on a 2004 Chevrolet Silverado 2500 Hd?

The OEM-specified lug-nut torque for the 2004 Chevrolet Silverado 2500 Hd is TTY: 15+60°, 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 2004 Chevrolet Silverado 2500 Hd lug nuts?

The 2004 Chevrolet Silverado 2500 Hd 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 2004 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.

→ 2004 Chevrolet Silverado 2500 Hd suspension & steering torque specs (control arm, ball joint, tie rod)

→ 2004 Chevrolet Silverado 2500 Hd engine & transmission mount torque specs

All 122 2004 Chevrolet Silverado 2500 Hd fastener specs

Per-bolt torque, wrench size, and thread spec for the 2004 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. 2 of the 122 fastener specs on this page are independently verified against OEM service manuals and manufacturer torque data (last reviewed July 2026).

Brakes — 2004 Chevrolet Silverado 2500 Hd

Brake fasteners on the 2004 Chevrolet Silverado 2500 Hd — caliper bracket, slide pins, and banjo bolt torque follow. Front brake caliper bracket bolt tightens to 221 ft-lbs (300 Nm), located at the front caliper. This figure is independently verified against OEM service data. The front brake caliper slide pin, torqued to 80 ft-lbs (108 Nm) at the front caliper. OEM-verified spec.

Drivetrain — 2004 Chevrolet Silverado 2500 Hd

Drivetrain and driveline fasteners for the 2004 Chevrolet Silverado 2500 Hd — axle, transmission, and differential plugs. 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 front axle housing, the front differential actuator bolt torques to 18 lb-ft (10mm drive, M8 x 1.25 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). Transfer case mounting bolt tightens to 37 lb-ft, takes a 18mm driver, runs on M12 x 1.75 threads, located at the transmission/transfer case. The differential cover bolt uses a 13mm drive on a M10 x 1.5 thread, torqued to 25 lb-ft at the differential cover. At the driveshaft yoke, the driveshaft u-joint strap bolt torques to 15 lb-ft (1/2 inch drive, 5/16-18 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). 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.

Steering — 2004 Chevrolet Silverado 2500 Hd

Steering linkage fasteners on the 2004 Chevrolet Silverado 2500 Hd. At the steering gear/pump, the power steering hose fitting torques to 20 lb-ft (19mm drive, M16 x 1.5 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). 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. 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 frame rail, plan for a 18mm tool on a M12 x 1.75 stud; final torque is 60 lb-ft (idler arm bolt). Steering gear box mounting bolt tightens to 110 lb-ft, takes a 21mm driver, runs on M14 x 2.0 threads, located at the frame rail. The steering shaft pinch bolt uses a 13mm drive on a M10 x 1.5 thread, torqued to 22 lb-ft at the steering column.

Electrical — 2004 Chevrolet Silverado 2500 Hd

Electrical fasteners on the 2004 Chevrolet Silverado 2500 Hd. 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). 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. 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 engine block/bracket, the alternator mounting bolt torques to 37 lb-ft (15mm drive, M10 x 1.5 thread). 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.

Transmission — 2004 Chevrolet Silverado 2500 Hd

Transmission fasteners on the 2004 Chevrolet Silverado 2500 Hd. 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 mount bolt uses a 18mm drive on a M12 x 1.75 thread, torqued to 37 lb-ft at the crossmember. At the bell housing, the transmission to engine bolt torques to 37 lb-ft (18mm drive, M12 x 1.75 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). Transmission vent tube bolt tightens to 60 lb-in, takes a 8mm driver, runs on M6 x 1.0 threads, located at the transmission top. The transmission pan bolt uses a 10mm drive on a M8 x 1.25 thread, torqued to 10 lb-ft at the transmission pan. At the flexplate, the torque converter bolt torques to 46 lb-ft (15mm drive, M10 x 1.5 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 crossmember bolt tightens to 70 lb-ft, takes a 18mm driver, runs on M12 x 1.75 threads, located at the frame rail. The transmission cooler line fitting uses a 17mm drive on a M14 x 1.5 thread, torqued to 26 lb-ft at the transmission case.

Engine - Bottom End — 2004 Chevrolet Silverado 2500 Hd

Engine - Bottom End fasteners on the 2004 Chevrolet Silverado 2500 Hd. The engine mount bolt - front uses a 18mm drive on a M12 x 1.75 thread, torqued to 59 lb-ft at the engine block to frame. 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 timing cover, plan for a 10mm tool on a M8 x 1.25 stud; final torque is 11 lb-ft (water pump bolt). 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 timing chain cover bolt uses a 10mm drive on a M8 x 1.25 thread, torqued to 18 lb-ft at the engine block. 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). Crankshaft pulley bolt tightens to TTY: 37+140°, takes a 24mm driver, runs on M16 x 2.0 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. At the intake manifold/block, the thermostat housing bolt torques to 11 lb-ft (10mm drive, M8 x 1.25 thread). For the transmission to crossmember, plan for a 18mm tool on a M12 x 1.75 stud; final torque is 37 lb-ft (engine mount bolt - rear). Oil drain plug tightens to 18 ft-lbs (25 Nm), takes a 15mm driver, runs on M12x1.75 threads, located at the oil pan.

Exhaust System — 2004 Chevrolet Silverado 2500 Hd

Exhaust System fasteners on the 2004 Chevrolet Silverado 2500 Hd. At the muffler connection, the muffler 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). Exhaust pipe flange bolt tightens to 25 lb-ft, takes a 15mm driver, runs on M10 x 1.5 threads, located at the exhaust manifold. 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 pipe, the oxygen sensor torques to 31 lb-ft (22mm drive, M18 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).

Rear Suspension — 2004 Chevrolet Silverado 2500 Hd

Rear Suspension fasteners on the 2004 Chevrolet Silverado 2500 Hd. 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). Leaf spring front eye bolt tightens to 95 lb-ft, takes a 21mm driver, runs on M14 x 2.0 threads, located at the front spring hanger. The track bar frame bolt uses a 21mm drive on a M14 x 2.0 thread, torqued to 110 lb-ft at the frame rail. At the rear spring shackle, the leaf spring rear shackle bolt torques to 70 lb-ft (21mm drive, M14 x 2.0 thread). 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 axle bracket, the rear shock absorber lower bolt torques to 70 lb-ft (18mm drive, M12 x 1.75 thread). For the axle to sway bar, plan for a 15mm tool on a M10 x 1.5 stud; final torque is 44 lb-ft (rear stabilizer bar link bolt). Leaf spring u-bolt tightens to 52 lb-ft, takes a 5/8 inch driver, runs on 7/16-20 threads, located at the axle to spring.

Body & Cab — 2004 Chevrolet Silverado 2500 Hd

Body & Cab fasteners on the 2004 Chevrolet Silverado 2500 Hd. 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 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 cab to frame, the cab mount bolt torques to 74 lb-ft (18mm drive, M12 x 1.75 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 tailgate hinge bolt uses a 13mm drive on a M8 x 1.25 thread, torqued to 20 lb-ft at the bed rail to tailgate. At the frame rail, the skid plate bolt torques to 18 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). Bed rail tie-down tightens to 15 lb-ft, takes a 13mm driver, runs on M8 x 1.25 threads, located at the bed rail. 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 fender to cab, the fender mounting bolt torques to 18 lb-ft (10mm drive, M8 x 1.25 thread). For the frame horn, plan for a 18mm tool on a M12 x 1.75 stud; final torque is 30 lb-ft (bumper mounting bolt - front). 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. The door hinge bolt uses a 13mm drive on a M10 x 1.5 thread, torqued to 20 lb-ft at the door to cab pillar. At the door jamb, the door striker bolt torques to 18 lb-ft (10mm drive, M8 x 1.25 thread).

Wheels & Brakes — 2004 Chevrolet Silverado 2500 Hd

Wheels & Brakes fasteners on the 2004 Chevrolet Silverado 2500 Hd. 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 front/rear brake caliper, the brake caliper mounting bolt torques to 80 lb-ft (18mm drive, M12 x 1.75 thread). 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 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 rotor set screw uses a 10mm drive on a M8 x 1.25 thread, torqued to 35 lb-in at the brake rotor. At the brake caliper, the brake line banjo bolt torques to 30 lb-ft (12mm drive, M10 x 1.0 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 caliper bracket bolt tightens to 140 lb-ft, takes a 21mm driver, runs on M14 x 2.0 threads, located at the front/rear caliper bracket. 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 wheel hub/knuckle, the abs sensor bolt torques to 80 lb-in (8mm drive, M6 x 1.0 thread).

Engine - Top End — 2004 Chevrolet Silverado 2500 Hd

Engine - Top End fasteners on the 2004 Chevrolet Silverado 2500 Hd. At the intake manifold, the throttle body bolt torques to 89 lb-in (8mm drive, M6 x 1.0 thread). For the valve cover, plan for a 8mm tool on a M6 x 1.0 stud; final torque is 60 lb-in (pcv valve grommet bolt). Camshaft position sensor bolt tightens to 80 lb-in, takes a 8mm driver, runs on M6 x 1.0 threads, located at the cylinder head/timing cover. 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 intake manifold bolt torques to 89 lb-in (10mm drive, M8 x 1.25 thread). 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). 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 exhaust manifold bolt uses a 13mm drive on a M8 x 1.25 thread, torqued to 18 lb-ft at the exhaust 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, plan for a 15mm tool on a M11 x 2.0 stud; final torque is TTY: 22+90° (cylinder head bolt). 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 air intake tube clamp uses a 8mm drive on a M6 x 1.0 thread, torqued to 40 lb-in at the throttle body/air box. At the cylinder head, the exhaust manifold stud torques to 15 lb-ft (13mm drive, M8 x 1.25 thread). For the valve cover, plan for a 8mm tool on a M6 x 1.0 stud; final torque is 70 lb-in (ignition coil bolt). Spark plug tightens to 11 lb-ft, takes a 16mm driver, runs on M14 x 1.25 threads, located at the cylinder head.

Interior — 2004 Chevrolet Silverado 2500 Hd

Interior fasteners on the 2004 Chevrolet Silverado 2500 Hd. For the floor pan, plan for a None tool on a Push Clip stud; final torque is Hand Tight (floor mat clip). Seat belt anchor bolt tightens to 37 lb-ft, takes a 18mm driver, runs on M12 x 1.75 threads, located at the b-pillar/floor. 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 dash to firewall, the dashboard mounting bolt torques to 18 lb-ft (10mm drive, M8 x 1.25 thread). For the dashboard, plan for a 8mm tool on a M6 x 1.0 stud; final torque is Hand Tight (glove box hinge screw). 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 sun visor screw uses a 8mm drive on a M6 x 1.0 thread, torqued to Hand Tight at the headliner. At the seat track to floor, the seat mounting bolt torques to 37 lb-ft (13mm drive, M10 x 1.5 thread).

Front Suspension — 2004 Chevrolet Silverado 2500 Hd

Front Suspension fasteners on the 2004 Chevrolet Silverado 2500 Hd. Lower control arm frame bolt tightens to 107 lb-ft, takes a 21mm driver, runs on M14 x 2.0 threads, located at the frame bracket. 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 steering knuckle, the tie rod end nut torques to 44 lb-ft (21mm drive, M14 x 1.5 thread). For the steering knuckle, plan for a 27mm tool on a M18 x 1.5 stud; final torque is 111 lb-ft (lower control arm ball joint 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 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 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). Torsion bar adjuster bolt tightens to Variable, takes a 18mm driver, runs on M12 x 1.75 threads, located at the torsion bar crossmember. The upper control arm frame bolt uses a 21mm drive on a M14 x 2.0 thread, torqued to 140 lb-ft at the frame bracket. At the wheel hub, the steering knuckle to hub bolt torques to 133 lb-ft (18mm drive, M12 x 1.75 thread). For the steering knuckle, plan for a 21mm tool on a M14 x 1.5 stud; final torque is 37 lb-ft (upper control arm ball joint 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 2004 Chevrolet Silverado 2500 Hd numbers above.

Loading the interactive 2004 Chevrolet Silverado 2500 Hd fastener lookup with per-bolt filtering, part links, and torque tools…