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

Vehicle fitment

This product fits the vehicles listed below.

YearMakeModelDrivetrainNotes
2007GMCSierra 3500 HD4WDMust reuse existing metal shell and hardware
2008GMCSierra 3500 HD4WDMust reuse existing metal shell and hardware
2009GMCSierra 3500 HD4WDMust reuse existing metal shell and hardware
2010GMCSierra 3500 HD4WDMust reuse existing metal shell and hardware

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