2002 Chevrolet Silverado 1500hd Lug Nut Torque & Bolt Specs
The 2002 Chevrolet Silverado 1500hd 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 2002 Chevrolet Silverado 1500hd. 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 2002 Chevrolet Silverado 1500hd
- 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 2002 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
- 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 2002 Chevrolet Silverado 1500hd?
The OEM-specified lug-nut torque for the 2002 Chevrolet Silverado 1500hd 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 2002 Chevrolet Silverado 1500hd lug nuts?
The 2002 Chevrolet Silverado 1500hd 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 2002 Chevrolet Silverado 1500hd 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 1500hd years
Same model, different model year — fastener spec may change. Always confirm against the year for your VIN.
→ 2002 Chevrolet Silverado 1500hd oil drain plug torque & size
→ 2002 Chevrolet Silverado 1500hd engine & transmission mount torque specs
All 120 2002 Chevrolet Silverado 1500hd fastener specs
Per-bolt torque, wrench size, and thread spec for the 2002 Chevrolet Silverado 1500hd, 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 — 2002 Chevrolet Silverado 1500hd
Drivetrain and driveline fasteners for the 2002 Chevrolet Silverado 1500hd — 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 transfer case, the transfer case drain plug torques to 25 lb-ft (15mm drive, M14 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 fill 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 differential drain plug uses a 3/8 inch drive on a 3/8-18 NPT thread, torqued to 24 lb-ft at the differential housing. At the frame crossmember, the driveshaft center support bearing bolt torques to 37 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).
Steering — 2002 Chevrolet Silverado 1500hd
Steering linkage fasteners on the 2002 Chevrolet Silverado 1500hd. 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 dash/firewall, the steering column bracket bolt torques to 18 lb-ft (13mm drive, M10 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). Pitman arm nut tightens to 184 lb-ft, takes a 30mm driver, runs on M20 x 1.5 threads, located at the steering gear output. The drag link end nut uses a 21mm drive on a M14 x 1.5 thread, torqued to 44 lb-ft at the pitman arm/knuckle. At the engine block/bracket, the power steering pump mounting bolt torques to 37 lb-ft (15mm drive, M10 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). 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.
Electrical — 2002 Chevrolet Silverado 1500hd
Electrical fasteners on the 2002 Chevrolet Silverado 1500hd. At the rear bumper, the license plate screw torques to 2 lb-ft (7mm drive, 1/4-20 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). Alternator 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 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 various locations, the wiring harness bracket bolt torques to 80 lb-in (8mm drive, M6 x 1.0 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).
Interior — 2002 Chevrolet Silverado 1500hd
Interior fasteners on the 2002 Chevrolet Silverado 1500hd. 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). Sun visor screw tightens to Hand Tight, takes a 8mm driver, runs on M6 x 1.0 threads, located at the headliner. The seat mounting bolt uses a 13mm drive on a M10 x 1.5 thread, torqued to 37 lb-ft at the seat track to floor. 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). Floor mat clip tightens to Hand Tight, takes a None driver, runs on Push Clip threads, located at the floor pan. 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 steering column, the steering wheel nut torques to 140 ft-lbs (190 Nm) (24mm drive, M14x1.5 thread).
Wheels & Brakes — 2002 Chevrolet Silverado 1500hd
Wheels & Brakes fasteners on the 2002 Chevrolet Silverado 1500hd. 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 caliper mounting bolt uses a 18mm drive on a M12x1.75 thread, torqued to 80 lb-ft at the front/rear brake caliper. At the firewall/booster, the brake master cylinder mounting nut torques to 20 lb-ft (13mm drive, M10 x 1.5 thread). For the wheel hub/knuckle, plan for a 8mm tool on a M6 x 1.0 stud; final torque is 80 lb-in (abs sensor bolt). Wheel lug nut tightens to 140 ft-lbs (190 Nm), takes a 21mm driver, runs on M14x1.5 threads, located at the wheels. The brake line banjo bolt uses a 12mm drive on a M10 x 1.0 thread, torqued to 30 lb-ft at the brake caliper. 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 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 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.
Rear Suspension — 2002 Chevrolet Silverado 1500hd
Rear Suspension fasteners on the 2002 Chevrolet Silverado 1500hd. 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. The rear stabilizer bar bracket bolt uses a 15mm drive on a M10 x 1.5 thread, torqued to 37 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 18mm tool on a M12 x 1.75 stud; final torque is 70 lb-ft (rear shock absorber upper 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 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 front spring hanger, the leaf spring front eye bolt torques to 95 lb-ft (21mm drive, M14 x 2.0 thread).
Front Suspension — 2002 Chevrolet Silverado 1500hd
Front Suspension fasteners on the 2002 Chevrolet Silverado 1500hd. At the steering knuckle, the lower control arm ball joint nut torques to 111 lb-ft (27mm drive, M18 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). 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 torsion bar adjuster bolt uses a 18mm drive on a M12 x 1.75 thread, torqued to Variable at the torsion bar crossmember. At the frame rail, the stabilizer bar bracket bolt torques to 37 lb-ft (13mm drive, M10 x 1.5 thread). For the wheel hub, plan for a 18mm tool on a M12 x 1.75 stud; final torque is 133 lb-ft (steering knuckle to hub 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 tie rod end nut uses a 21mm drive on a M14 x 1.5 thread, torqued to 44 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 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). 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. 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.
Engine - Top End — 2002 Chevrolet Silverado 1500hd
Engine - Top End fasteners on the 2002 Chevrolet Silverado 1500hd. For the cylinder head, plan for a 16mm tool on a M14 x 1.25 stud; final torque is 11 lb-ft (spark plug). 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 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 cylinder head, the exhaust manifold stud torques to 15 lb-ft (13mm drive, M8 x 1.25 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). Air intake tube clamp tightens to 40 lb-in, takes a 8mm driver, runs on M6 x 1.0 threads, located at the throttle body/air box. The fuel injector retainer bolt uses a 8mm drive on a M6 x 1.0 thread, torqued to 80 lb-in at the fuel rail. At the intake manifold, the intake manifold bolt torques to 89 lb-in (10mm drive, M8 x 1.25 thread). For the exhaust manifold, plan for a 13mm tool on a M8 x 1.25 stud; final torque is 18 lb-ft (exhaust manifold 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 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 cylinder head/timing cover, the camshaft position sensor 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). 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 ignition coil bolt uses a 8mm drive on a M6 x 1.0 thread, torqued to 70 lb-in at the valve cover.
Transmission — 2002 Chevrolet Silverado 1500hd
Transmission fasteners on the 2002 Chevrolet Silverado 1500hd. 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 cooler line fitting uses a 17mm drive on a M14 x 1.5 thread, torqued to 26 lb-ft at the transmission case. At the transmission top, the transmission vent tube bolt torques to 60 lb-in (8mm drive, M6 x 1.0 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). Transmission mount bolt tightens to 37 lb-ft, takes a 18mm driver, runs on M12 x 1.75 threads, located at the crossmember. The starter motor bolt uses a 15mm drive on a M10 x 1.5 thread, torqued to 37 lb-ft at the bell housing. At the frame rail, the transmission crossmember bolt torques to 70 lb-ft (18mm drive, M12 x 1.75 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). 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 pan bolt uses a 10mm drive on a M8 x 1.25 thread, torqued to 10 lb-ft at the transmission pan.
Body & Cab — 2002 Chevrolet Silverado 1500hd
Body & Cab fasteners on the 2002 Chevrolet Silverado 1500hd. 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 bed rail to tailgate, the tailgate hinge bolt torques to 20 lb-ft (13mm drive, M8 x 1.25 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). 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 hood hinge bolt uses a 13mm drive on a M10 x 1.5 thread, torqued to 18 lb-ft at the hood to fender. At the bed rail, the bed rail tie-down torques to 15 lb-ft (13mm drive, M8 x 1.25 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). 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 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 frame horn, the radiator support bolt torques to 18 lb-ft (13mm drive, M10 x 1.5 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). Bumper mounting bolt - rear tightens to 30 lb-ft, takes a 18mm driver, runs on M12 x 1.75 threads, located at the frame rail. The grille mounting clip uses a None drive on a Push Clip thread, torqued to Hand Tight at the radiator support. At the frame horn, the tow hook bolt torques to 50 lb-ft (18mm drive, M12 x 1.75 thread). For the cab to frame, plan for a 18mm tool on a M12 x 1.75 stud; final torque is 74 lb-ft (cab mount bolt).
Engine - Bottom End — 2002 Chevrolet Silverado 1500hd
Engine - Bottom End fasteners on the 2002 Chevrolet Silverado 1500hd. 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 crankshaft, plan for a 15mm tool on a M12 x 1.75 stud; final torque is TTY: 15+60° (flywheel bolt). Engine mount bolt - front tightens to 59 lb-ft, takes a 18mm driver, runs on M12 x 1.75 threads, located at the engine block to frame. 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 timing cover, the water pump bolt torques to 11 lb-ft (10mm drive, M8 x 1.25 thread). For the engine block, plan for a 12mm tool on a M8 x 1.25 stud; final torque is 18 lb-ft (knock sensor 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 engine mount bolt - rear uses a 18mm drive on a M12 x 1.75 thread, torqued to 37 lb-ft at the transmission to crossmember. At the engine block, the timing chain cover bolt torques to 18 lb-ft (10mm drive, M8 x 1.25 thread). For the intake manifold/block, plan for a 10mm tool on a M8 x 1.25 stud; final torque is 11 lb-ft (thermostat housing bolt). Oil drain plug tightens to 18 ft-lbs (25 Nm), takes a 15mm driver, runs on M12x1.75 threads, located at the oil pan. The oil pan bolt uses a 10mm drive on a M8 x 1.25 thread, torqued to 18 lb-ft at the oil pan.
Exhaust System — 2002 Chevrolet Silverado 1500hd
Exhaust System fasteners on the 2002 Chevrolet Silverado 1500hd. 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). Muffler clamp bolt tightens to 25 lb-ft, takes a 13mm driver, runs on M8 x 1.25 threads, located at the muffler connection. 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 frame/body mount, plan for a 13mm tool on a M8 x 1.25 stud; final torque is 18 lb-ft (exhaust hanger bolt). Tailpipe clamp bolt tightens to 25 lb-ft, takes a 13mm driver, runs on M8 x 1.25 threads, located at the tailpipe connection.
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 2002 Chevrolet Silverado 1500hd numbers above.
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