The Whiteline Rear Differential Mount Bushing fits the 2017-2020 BMW 430i xDrive Gran Coupe 4 Series (F36). The kit contains 5 bushings, 3 tubes, 3 washers, an install guide, and grease. Order it as part number KDT919. Position: rear.
The differential is hung from the chassis on bushings that are soft for comfort. Under hard acceleration and braking they let it rock, so power reaches the wheels a moment late and the rear end can feel loose. A firmer bushing holds the differential more steadily, which sharpens throttle response. Polyurethane resists deflection far better than the soft rubber it replaces.
Expect a difficult job of about 4 hours. An alignment is required after installation. Other Whiteline parts we list for the 430i xDrive Gran Coupe 4 Series: Adjustable Rear Sway Bar Link, Rear Subframe Mount Bushing, and Rear Lower Trailing Arm Bushing.
Features
Specifications
| Part Number | KDT919 |
| Part Name | Differential Mount Bushing |
| Vehicle | 2017-2020 BMW 430i xDrive Gran Coupe 4 Series |
| Chassis Code | F36 |
| Bushing Color | Black |
| Bushing Material | Polyurethane |
| Color | Black |
| Durometer | 72 |
| Installation Difficulty | Difficult |
| Installation Time (hrs) | 4 |
| Kit Contents | 5 Bushings, 3 Tubes, 3 Washers, Install Guide, Grease |
| Material | Polyurethane |
| Mounting Hardware Included | No |
| Universal or Specific Fit | Specific Fit |
| Vehicle Placement | Rear |
| Wheel Alignment Required | Yes |
| Notes | – |


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