Whiteline Rear Differential Mount Front Bushing Kit — Subaru Impreza, Liberty & Outback
In stock
Delivery & Return
We aim to dispatch orders as quickly as possible using reliable UK courier services. Delivery times can vary depending on stock availability, supplier location and the type of product ordered.
Estimated delivery times are shown where available, but these should be treated as a guide rather than a guaranteed delivery date.
Some specialist, made-to-order, imported or supplier-direct performance parts may take longer to arrive. If you need a part by a specific date, we recommend checking availability before ordering.
Once your order has been dispatched, tracking information will be provided where available.
UK Delivery
We deliver throughout the United Kingdom.
Shipping charges are calculated at checkout based on the size, weight and destination of your order. Larger or heavier items may have an additional delivery charge.
Deliveries to the Scottish Highlands, Northern Ireland, Isle of Man, Isle of Wight, Channel Islands and other remote locations may take longer or incur additional charges.
International Delivery
International shipping may be available for selected products and destinations.
Import duties, taxes, customs charges and local handling fees are the responsibility of the customer unless stated otherwise. These charges are not included in the product price or standard shipping cost.
Please check your local import requirements before placing an international order.
Incorrect, Damaged or Faulty Items
Please inspect your order as soon as it arrives.
If your item is damaged in transit, faulty or different from what you ordered, contact us as soon as possible with your order number and clear photographs where relevant.
We will review the issue and advise you of the appropriate next steps.
Vehicle Fitment & Compatibility
It is the customer’s responsibility to check that a product is suitable for their vehicle before installation.
Please verify the vehicle model, year, engine, chassis code, part number and any relevant brake, suspension or drivetrain specification before ordering.
If you are unsure about compatibility, contact us before purchase with your vehicle registration or VIN and the product SKU where possible.
We cannot accept responsibility for incorrect fitment caused by inaccurate vehicle information, non-standard modifications or aftermarket conversions that were not disclosed before purchase.
Special Order & Made-to-Order Products
Some performance parts are specially ordered, imported, customised or manufactured specifically for a customer.
These products may be subject to different cancellation and return conditions. Where applicable, this will be confirmed before the order is processed.
Refunds
Approved refunds are normally issued back to the original payment method after the returned item has been received and inspected.
Original delivery charges and return postage may not be refundable unless the item is faulty, damaged or supplied incorrectly.
Please allow time for your bank or payment provider to process the refund after it has been issued.
Need Help?
If you have any questions about delivery, returns or product compatibility, please contact Performance Car Parts UK before ordering. We will be happy to help you check product details and fitment information.
Restore drivetrain precision and cut power loss with Whiteline’s rear differential front mount bushing kit, purpose-built for the Subaru Impreza, Liberty, and Outback.
Worn factory diff mount bushings let the differential shift under load, causing pinion angle drift that costs you power at the wheels and introduces unwanted drivetrain shock on acceleration and gear changes. This kit replaces the front mount bushing with Whiteline’s shell-type design, holding the differential precisely in place to maintain correct pinion angle — resulting in reduced initial torque loss, smoother gear shifts, and more power making it to the road.
Built with reliability in mind, the kit balances performance gains with reduced noise and vibration, so you get sharper drivetrain response without turning your daily driver harsh.
What’s included: 2x shell bushings, 2x tubes
Vehicle Fitment:
| Make | Model | Years & Chassis |
|---|---|---|
| Subaru | Impreza | 1992–2000 GC, GF Sedan & Wagon |
| Subaru | Impreza | 2000–2007 GD Sedan |
| Subaru | Impreza | 2000–2007 GG Wagon |
| Subaru | Impreza WRX | 1992–2000 GC, GF Sedan & Wagon |
| Subaru | Impreza WRX | 2000–2008 GD Sedan |
| Subaru | Impreza WRX | 2000–2008 GG Wagon |
| Subaru | Impreza WRX STi | 1992–2000 GC, GF Sedan & Wagon |
| Subaru | Impreza WRX STi | 2001–2005 GD Sedan |
| Subaru | Impreza WRX STi | 2005–2007 GD Sedan |
| Subaru | Legacy | 1994–1999 BD, BG, BK |
| Subaru | Liberty | 1994–1999 BD, BG, BK |
| Subaru | Outback | 1996–1998 BG |
Specifications:
- SKU: W91379
- Fitting position: Rear axle, front diff mount
- Bush type: Shell without flange
- Outer diameter: 63.9mm
- Inner diameter: 19mm
- Length: 57.8mm
- Flange thickness: 13mm
- Installation time: ~4 hours (suspension specialist recommended)
- Wheel alignment: Required after fitting (rear)
- Warranty: Lifetime warranty
- Weight/dimensions: 0.644kg, 7 × 20 × 14cm
Delivery & Returns
UK Delivery
We deliver throughout the United Kingdom using reliable courier services. Delivery times vary depending on stock availability, supplier location, product size and destination.
Shipping charges are calculated at checkout where applicable. Larger, heavier, specialist or supplier-direct items may incur additional delivery charges.
Dispatch Times
We aim to dispatch in-stock products as quickly as possible. Some specialist, imported, made-to-order or supplier-direct performance parts may require additional processing time.
If you require a product by a specific date, please contact us before ordering so availability can be checked.
Tracking
Tracking information will be provided where available once your order has been dispatched.
International Delivery
International shipping may be available for selected products and destinations. Import duties, taxes, customs charges and local handling fees are normally the responsibility of the customer unless otherwise stated.
Returns
Please contact us before returning an item. Products should be returned in accordance with our returns policy and in suitable condition where applicable.
Special-order, made-to-order, customised or imported products may be subject to different cancellation and return conditions.
Damaged, Faulty or Incorrect Items
Please inspect your order as soon as it arrives. If an item is damaged, faulty or different from what you ordered, contact us promptly with your order number and clear photographs where relevant.
Vehicle Fitment
It is the customer’s responsibility to confirm product compatibility before installation. If you are unsure, contact us with your vehicle registration or VIN and the product SKU before ordering.
