Product Details
This Whiteline Front Upper and Lower Control Arm Bushing Kit fits the 2007-2010 GMC Sierra 3500 HD. The part number is W56422. Whiteline's note for this fit: Must reuse existing metal shell and hardware. The chassis code on the listing is GMT900. In the box: 8 bushings, 4 tubes, and grease. This part is for the front of the vehicle.
A control arm bushing is the pivot where the arm joins the chassis or the wheel carrier. Factory rubber is chosen for quiet and comfort, so it squashes under braking, acceleration, and cornering and lets the arm move more than it should. A firmer replacement keeps the arm where it belongs, which steadies the alignment and gives the car a more consistent feel. The polyurethane used here deflects much less than the original rubber under the same load.
Expect a difficult job of about 3 hours. An alignment is required after installation. Other Whiteline parts we list for the Sierra 3500 HD: Body Mount Bushing Kit, Front Differential Mount Bushing Kit, and 36mm Front Sway Bar Mount Bushing Kit.
Features
- Bushing material: The bushing material is polyurethane, a firmer choice than rubber.
- Bushing compound: A synthetic elastomer compound resists oil, grease, ozone, and weathering.
- Install guide: Whiteline packs an install guide with it.
- Easy to fit: Designed for an easy install with ordinary shop equipment.
- Self-lubricating: The bushing carries its own grease supply in internal reservoirs, so it keeps moving freely.
- Material: Made from polyurethane.
Specifications
| Part Number | W56422 |
| Part Name | Control Arm Bushings |
| Vehicle | 2007-2010 GMC Sierra 3500 HD |
| Chassis Code | GMT900 |
| Bushing 1 Inner Diameter | 16.2 mm |
| Bushing 1 Length | 74.5 mm |
| Bushing 1 Outer Diameter | 44.7 mm |
| Bushing 2 Inner Diameter | 16.2 mm |
| Bushing 2 Length | 98 mm |
| Bushing 2 Outer Diameter | 45 mm |
| Bushing Color | Black |
| Bushing Material | Polyurethane |
| Bushing Quantity | 8 |
| Grade Type | Regular |
| Installation Difficulty | Difficult |
| Installation Time (hrs) | 3 |
| Kit Contents | 8 Bushings, 4 Tubes, Grease |
| Material | Polyurethane |
| Mounting Hardware Included | No |
| Outside Diameter | 44.7 mm |
| Vehicle Placement | Front |
| Wheel Alignment Required | Yes |
| Notes | Must reuse existing metal shell and hardware |

