Product Details
This Whiteline Rear Leaf Spring and Shackle Bushing Kit fits the 1999-2018 GMC Sierra 1500. Order it as part number W73821. Placement: rear. In the box: 12 bushings and 4 tubes. The chassis code on the listing is GMT800/GMT900.
A tired leaf spring bushing lets the axle wander under braking, acceleration, and load. Fresh bushings hold the spring ends firmly while still letting them pivot. The polyurethane used here deflects much less than the original rubber under the same load.
Installation is rated moderate, with about 2 hours of work listed. It does not require a wheel alignment. To go with it on the Sierra 1500, see Front Upper and Lower Control Arm Bushing Kit, Front Upper Control Arm Set - Fixed Offset, and Upper Control Arm Ball Joint Service Kit.
Features
- Install guide: An install guide comes in the box.
- Self-lubricating: Internal grease reservoirs keep the bushing lubricated as it works.
- Bushing compound: A synthetic elastomer compound resists oil, grease, ozone, and weathering.
- Bushing material: The bushing material is polyurethane, a firmer choice than rubber.
Specifications
| Part Number | W73821 |
| Part Name | Leaf Spring Bushings |
| Vehicle | 1999-2018 GMC Sierra 1500 |
| Chassis Code | GMT800/GMT900 |
| Bushing Color | Black |
| Bushing Inside Diameter | 25.4 mm |
| Bushing Length | 35.4 mm |
| Bushing Material | Polyurethane |
| Bushing Outside Diameter | 50.6 mm |
| Color | Black |
| Durometer | 85 |
| Grade Type | Premium |
| Grade Type | Standard Replacement |
| Grade Type | Improved Design |
| Grade Type | OEM Performance |
| Grade Type | Performance |
| Installation Difficulty | Moderate |
| Installation Time (hrs) | 2 |
| Kit Contents | 12 Bushings, 4 Tubes |
| Material | Polyurethane |
| Universal or Specific Fit | Specific Fit |
| Vehicle Placement | Rear |
| Wheel Alignment Required | No |
| Notes | - |
Fitment for Sierra leaf spring bushings
Fits the 1999-2018 GMC Sierra 1500. Each model year is listed below.