Product Details
This Whiteline Front Upper and Lower Control Arm Bushing Kit fits the 1973-1974 GMC C15/C1500 Suburban. Part number W56421. In the box: 8 bushings, 8 tubes, and grease. Placement: front. The drivetrain on the listing is RWD.
Bushings work out of sight, but they decide how well a suspension holds its geometry. A soft or tired control arm bushing allows play that shows up as vague steering, a wandering feel under braking, or a clunk over bumps. Fitting a firmer one takes that slack out. The polyurethane used here deflects much less than the original rubber under the same load.
Installation is rated difficult, with about 3 hours of work listed. An alignment is required after installation. Working on the same car? We also list Transmission Mount Bushing Kit and Tie Rod Boot Kit for the C15/C1500 Suburban.
Features
- Self-lubricating: Built-in grease reservoirs provide continual lubrication and reduce friction.
- Material: The part is made of polyurethane.
- Bushing material: Made of polyurethane, which resists deflection better than soft rubber.
- Install guide: An install guide comes in the box.
- Bushing compound: The elastomer formulation is chosen to shrug off oil, grease, ozone, and the elements.
- Grease: Moly grease is supplied to prolong the life of the parts.
Specifications
| Part Number | W56421 |
| Part Name | Control Arm Bushings |
| Vehicle | 1973-1974 GMC C15/C1500 Suburban |
| Chassis Code | C/K |
| Drivetrain | RWD |
| Bushing 1 Inner Diameter | 26 mm |
| Bushing 1 Length | 63 mm |
| Bushing 1 Outer Diameter | 53 mm |
| Bushing 2 Inner Diameter | 19.5 mm |
| Bushing 2 Length | 49 mm |
| Bushing 2 Outer Diameter | 40.4 mm |
| Bushing Color | Black |
| Bushing Material | Polyurethane |
| Bushing Quantity | 4 |
| Grade Type | Regular |
| Installation Difficulty | Difficult |
| Installation Time (hrs) | 3 |
| Kit Contents | 8 Bushings, 8 Tubes, Grease |
| Material | Polyurethane |
| Mounting Hardware Included | No |
| Outside Diameter | 53 mm |
| Vehicle Placement | Front |
| Wheel Alignment Required | Yes |
| Notes | - |