Product Details
This Whiteline Rear Spring Bushing Kit fits the 1975-1986 Chevrolet K20. The kit contains 12 bushings, 6 tubes, and grease. Whiteline part number: W73477. Placement: rear.
On a leaf-sprung vehicle the spring eyes and shackles pivot on bushings, and they take the movement every time the axle moves. Worn rubber lets the axle shift and clunk, and heavy loads speed that up. Polyurethane resists deflection far better than the soft rubber it replaces.
Installation is rated moderate, with about 2 hours of work listed. Get the car aligned once it is back on the ground. Other Whiteline parts we list for the Chevrolet K20: Body Mount Bushing Kit, Transmission Mount Bushing Kit, and Front Sway Bar Link Bushing Kit.
Features
- Bushing material: Made of polyurethane, which resists deflection better than soft rubber.
- Grease: Moly grease is supplied to prolong the life of the parts.
- Install guide: Whiteline packs an install guide with it.
- Self-lubricating: Internal grease reservoirs keep the bushing lubricated as it works.
- Bushing compound: The bushing material stands up to oil, grease, ozone, and weather.
Specifications
| Part Number | W73477 |
| Part Name | Spring Bushings |
| Vehicle | 1975-1986 Chevrolet K20 |
| Chassis Code | C/K |
| Bushing Color | Black |
| Bushing Inside Diameter | 19 mm |
| Bushing Length | 37.5 mm |
| Bushing Material | Polyurethane |
| Bushing Outside Diameter | 38.6 mm |
| Durometer | 85 |
| Grade Type | Regular |
| Installation Difficulty | Moderate |
| Installation Time (hrs) | 2 |
| Kit Contents | 12 Bushings, 6 Tubes, Grease |
| Vehicle Placement | Rear |
| Wheel Alignment Required | Yes |
| Notes | Fits vehicles with 1.5" Frame Shackle and 1.5" Main Eye (1700-2800# Axle Rating) |
Fitment for K20 spring bushings
Fits the 1975-1986 Chevrolet K20. Each model year is listed below.

