2024 GMC Sierra 2500HD Torque Specifications
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Quick reference
| Fastener | Torque (ft-lb / Nm) | Notes |
|---|---|---|
| Wheel Lug Nuts | 140 (190) | |
| Oil Drain Plug | 18-20 (24-27) | For 6.6L V8 gasoline engine. Confirm with OEM for diesel. |
| Transmission Drain Plug | Consult OEM manual | Fasteners vary by transmission model. |
| Front Brake Caliper Bracket Bolts | 148 (200) | |
| Rear Brake Caliper Bracket Bolts | 118-129 (160-175) | |
| Front Brake Caliper Slide Pins | 52 (70) | |
| Rear Brake Caliper Slide Pins | 27-30 (37-41) | |
| Front Axle Nut | Consult OEM manual | Torque specifications can be highly specific and critical for bearing preload. |
| Spark Plugs (6.6L Gas) | 11 (15) | For 6.6L V8 gasoline engine. Diesel engines use glow plugs. |
| Valve Cover Bolts | 10-11 (13-15) | For 6.6L V8 gasoline engine. |
Wheel lug torque pattern
For the 2024 GMC Sierra 2500HD, a star or cross pattern should be used when tightening wheel lug nuts. This ensures even clamping force across the wheel hub and prevents rotor warp or wheel distortion. Begin by hand-tightening all lug nuts, then progressively tighten them to the specified torque in the star/cross pattern. Perform a final check after all nuts have been torqued.
Brake torque notes
Brake system fasteners are crucial for safety. Always ensure that the threads are clean and free of rust or debris before reassembly. Do not use impact wrenches to tighten brake caliper bracket bolts or slide pins to final torque; hand tools are recommended for accuracy. It's also good practice to apply a small amount of threadlocker to caliper bracket bolts, per manufacturer recommendations, to prevent loosening due to vehicle vibration. Always replace any fasteners that show signs of damage, wear, or stretching.
Why torque matters
Proper fastener torque is not just a suggestion; it's a critical aspect of vehicle safety and longevity. Under-torquing can lead to fasteners vibrating loose, resulting in anything from annoying rattles to catastrophic component failure—like a wheel detaching from the vehicle or fluid leaks that damage other components. Over-torquing, on the other hand, can stretch or strip threads, crack components, or deform parts. This weakens the fastener's clamping force and can lead to breaks or failures under stress. For instance, over-tightening an oil pan drain plug can strip the threads in the oil pan, leading to costly repairs. In brake systems, incorrect torque can lead to uneven pad wear, noise, and reduced braking performance. Adhering to manufacturer specifications ensures that parts are held together with the correct amount of clamping force, promoting safety, reliability, and optimal performance of your 2024 GMC Sierra 2500HD.
Disclaimer: Always consult your official 2024 GMC Sierra 2500HD OEM service manual for the most accurate and up-to-date torque specifications. The information provided here is for general reference and educational purposes only. Critical safety-related fasteners should always be verified with the manufacturer's documentation.
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More specs for the 2024 GMC Sierra 2500HD
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Fuse Box Diagram & Amperage
Fuse box locations, layout, amps, and what each fuse controls.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
2001 Sierra 2500HD
2002 Sierra 2500HD
2003 Sierra 2500HD
2004 Sierra 2500HD
2005 Sierra 2500HD
2006 Sierra 2500HD
Maintenance & repair guides
2024 GMC Sierra 2500HD Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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Values can vary by engine, trim and build date; check your VIN-specific service information. Updated 2026-06-22.