Wharbo Precision Manufacturing co.,ltd
MMX Billet Rear Diff Mount Insert Kit, Final Drive Bush Inserts for BMW F2x F3x 1 2 3 4 Series (F20 F21 F22 F23 F30 F31 F32 F33 F36)
MMX Billet Rear Diff Mount Insert Kit, Final Drive Bush Inserts for BMW F2x F3x 1 2 3 4 Series (F20 F21 F22 F23 F30 F31 F32 F33 F36)
Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.
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Rear final drive mount insert kit for BMW F-Series
Transform the way your F-Series rear end behaves with these precision machined alloy diff mount inserts. By tightening up movement at the factory final drive bushes, this upgrade keeps your suspension geometry consistent through fast corners, delivering a more connected, confidence inspiring drive for fast road and track use.
We have fitted these on customer cars and our own builds, and the feedback is consistently positive. Sharper response, steadier rear axle control and a more planted feel when you lean on the car mid corner.
- Controls unwanted movement at the rear final drive mounting points
- Helps maintain true suspension alignment during cornering
- Enhanced stability and driver confidence on B-roads and track days
- Precision engineered alloy inserts for a durable, long lasting upgrade
- Fitting typically completed in under 60 minutes
- Fully reversible, no permanent changes required
Fitment
Designed for BMW F-Series platforms including F2x and F3x chassis. Common searches include F20 F21 F22 F23 F30 F31 F32 F33 F36, BMW 1 Series, 2 Series, 3 Series and 4 Series rear diff mount insert, final drive bush insert, rear differential mount upgrade and F30 diff bushing kit.
Why this upgrade
If you feel the rear of the car moves around under power or mid corner, these inserts help keep the final drive securely located so the suspension can do its job. Expect a tidier, more precise rear axle with consistent geometry when pushing on.
Installation and support
Home installation is straightforward and can be completed in less than 60 minutes, plus the kit is fully removable if you ever wish to return to standard. Prefer professional fitting
MJ Modifications offers fitting at our Warwickshire workshop. Email info@mjmodifications.co.uk for a quote and availability.
Search-friendly terms
BMW F30 rear diff mount insert, F20 final drive insert, F32 differential bushing upgrade, F36 rear diff bush kit, F2x F3x drivetrain mount insert, BMW 1 Series 2 Series 3 Series 4 Series rear differential mount upgrade.
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