Product Details
This Whiteline Rear Upper Trailing Arm Front Bushing fits the 2008-2011 Mazda RX-8 Grand Touring, Sport (SE3P). It goes on the rear of the vehicle. The part number is W63390. The kit contains 2 bushings, 2 tubes, and grease.
A trailing 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. Polyurethane resists deflection far better than the soft rubber it replaces.
Whiteline rates the install as moderate and lists about 2 hours. Get the car aligned once it is back on the ground. To go with it on the RX-8, see Adjustable Rear Sway Bar Link, Adjustable Front Sway Bar Link, and Front Control Arm Lower Inner Front Bushing.
Features
- Grease: Molybdenum disulfide grease comes with it for a longer service life.
- Bushing material: Polyurethane bushings flex far less than rubber ones.
- Bushing compound: The elastomer formulation is chosen to shrug off oil, grease, ozone, and the elements.
- Material: Made from polyurethane.
- Corrosion protection: Metal parts are plated to resist rust over the long term.
- Self-lubricating: The bushing carries its own grease supply in internal reservoirs, so it keeps moving freely.
Specifications
| Part Number | W63390 |
| Part Name | Trailing Arm Bushing |
| Vehicle | 2008-2011 Mazda RX-8 Grand Touring, Sport |
| Chassis Code | SE3P |
| Bushing Color | Black |
| Bushing Material | Polyurethane |
| Color | Black |
| Grade Type | Regular |
| Installation Difficulty | Moderate |
| Installation Time (hrs) | 2 |
| Kit Contents | 2 Bushings, 2 Tubes, Grease |
| Material | Polyurethane |
| Vehicle Placement | Rear |
| Wheel Alignment Required | Yes |
| Notes | - |