Product Details
The Bilstein B8 shocks are built for a 2001-2006 GMC Sierra 3500 (GMT800) that has been lifted or leveled, valved for the taller ride height rather than fighting it.
Bilstein supplies suspension as original equipment to manufacturers around the world, and applies the same engineering here. It fits the factory mounting points exactly and is covered by a limited lifetime warranty.
Features
- 46mm monotube design ensures consistent, fade-free performance in all conditions
- Self-adjusting deflective disc valving reacts immediately to surface changes enabling maximum vehicle control
- Remote reservoir increases shock oil capacity for greater heat dissipation
Specifications
| Part Number | 25-311891 |
| Part Name | Shock Absorber |
| Vehicle | 2001-2006 GMC Sierra 3500 |
| Chassis Code | GMT800 |
| Drivetrain | RWD/4WD |
| UPC | 651860899831 |
| Rear Lift Height | 0 - 2 in. |
| Billet Reservoir Clamp Included | Yes |
| Body Design | Smooth Body (Non-Coilover) |
| Body Diameter (ID) | 46 mm |
| Boot Included | No |
| Collapsed Length | 16.54 in. (420.0 mm) |
| Damping Adjustable | No |
| Extended Length | 27.04 in. (686.7 mm) |
| Finish | Zinc Plated |
| Internal Design | Monotube |
| Lower Mount Type | Eye 14.4 mm |
| Reservoir | Yes |
| Segment | Light Truck |
| Series | B8 5160 |
| Spring Seat Included | No |
| Upper Mount Type | Eye 14.4 mm |
| Quantity | Sold Individually |
| Notes | Without ZX3 Electronic Suspension Package and Quadrasteer |
Vehicle Fitment
- 2001 GMC Sierra 3500 RWD/4WD (GMT800)
- 2002 GMC Sierra 3500 RWD/4WD (GMT800)
- 2003 GMC Sierra 3500 RWD/4WD (GMT800)
- 2004 GMC Sierra 3500 RWD/4WD (GMT800)
- 2005 GMC Sierra 3500 RWD/4WD (GMT800)
- 2006 GMC Sierra 3500 RWD/4WD (GMT800)






