2008 GMC Sierra 2500HD 4x4 Towing Shocks
For a 2008 GMC Sierra 2500HD 4x4 Crew Cab towing a fifth wheel, compare application-matched Bilstein 4600 Heavy Duty candidates first if the truck remains at stock height. If it is leveled or lifted, verify the 5100 application and each axle’s actual height before selecting the parts.
The truck and trailer
The owner reports an approximately 11,000-pound fifth wheel with 1,400 pounds of pin weight. Those are the described loads, not an approval of the truck’s capacity. Check loaded axle weights and the truck’s ratings separately; dampers control movement without adding static carrying capacity.
Stock-height candidate references
| Family | Front reference | Rear reference | Application check |
|---|---|---|---|
| 4600 Heavy Duty / B6 | 24-060813 | 24-060820 | Confirm stock-height 2008 2500HD 4x4 Crew Cab. |
| 5100 | 24-186735 | 24-186742 | Confirm exact front and rear height limits. |
Do not mix conflicting lift allowances
Use the actual product instructions for the 5100 height range. The front and rear can have different allowed changes, and a leveling kit does not necessarily raise both axles equally. Do not choose a 5100 simply because it is perceived as firmer, or assume the rear shock produces lift.
Control and comfort under load
Inspect springs, mounts, tires and the existing support setup before choosing dampers. Describe whether the complaint is repeated bouncing, harshness empty or poor motion control when loaded. A well-matched shock is part of a complete towing setup; it does not cure every trailer handling issue or guarantee a soft ride. Verify exact quantity and application before ordering any of the candidate numbers.
Product details to compare
Check the exact vehicle application, package contents and installation requirements for each candidate.
Related guides
Frequently asked questions
Can these numbers be selected without checking suspension height?
No. Confirm stock, leveled or lifted configuration and the exact application for each axle.
Do shocks increase the truck’s pin-weight rating?
No. The vehicle’s original weight and axle ratings still apply.
Get help choosing the right parts
Contact Shockwarehouse with your vehicle or chassis details and the parts you are considering.
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