Powerflex PFR5-425 Rear Diff Front Mount Bush Kit for BMW 3 Series E90 E91 E92 E93 (2005-2013) | Polyurethane Differential Front Support/Final Drive Bushes | E9x Diff Mount Upgrade | Diff Clunk Fix | Rear Axle Front Bushing | Replaces OE 33176760287

Powerflex PFR5-425 Front Support Bushes for Rear Final Drive – BMW 3 Series E90 E91 E92 E93

Eliminate drivetrain slop and tighten the rear end of your BMW 3 Series with the Powerflex PFR5-425 front support bushes for the rear final drive. This performance-focused urethane bushing kit replaces the tired factory rubber, stabilising the diff housing for cleaner power delivery, more confident cornering and a planted rear axle on fast road and daily use. If you are chasing a diff clunk cure, a wheel hop reduction or sharper throttle pick-up on your E9x, this is the proven upgrade.

We run these bushes on our own builds and customer cars and the feedback is consistently excellent. Expect crisper turn-in, improved traction out of bends and a more composed chassis under braking, all while enjoying long-term durability that resists oil, fuel and road grime far better than OE rubber.

Highlights

• Locks down front mount of the rear final drive to limit unwanted movement under load
• Cleaner power transfer and better rear axle stability on bumpy B-roads
• Helps tame diff knock and reduces hop by cutting bush deflection
• High-performance polyurethane compound for longevity and consistency
• Improves tyre contact and rear-end predictability without harshness
• Backed by the Powerflex Lifetime Warranty

Compatibility

Direct-fit front bush kit for the rear differential carrier on the following BMW platforms:

• BMW 3 Series E90 Saloon 2005–2013
• BMW 3 Series E91 Touring 2005–2013
• BMW 3 Series E92 Coupé 2006–2013
• BMW 3 Series E93 Convertible 2007–2013

Also searched as: E90 diff mount upgrade, E91 differential front bush, E92 rear axle front bushing, E93 final drive front mount, E9x diff front support, BMW 3 Series diff clunk fix, rear axle bush kit.

Model years captured for search: 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013.

What you receive

• Number of bushes in the pack: 2
• Diagram reference: 25

Part numbers

• Manufacturer reference: PFR5-425
• Replaces BMW OE reference: 33176760287

Why this bushing kit

Compared with ageing factory rubber, these poly bushes offer consistent geometry under load, better longevity and a noticeable lift in rear-end control. Ideal for spirited road driving, commuting and track-curious builds that demand reliability. Many customers report reduced drivetrain shunt, smoother launches and more confidence in wet or dry conditions.

Professional fitting

Installation by a specialist is recommended for best results. MJ Modifications offers expert fitting in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Search-friendly terms

BMW E90 differential mount, BMW E91 diff front bush kit, BMW E92 rear diff front bushings, BMW E93 final drive bush replacement, PFR5-425 bushes, Powerflex diff mount kit, BMW 3 Series rear axle mount, poly diff bushing set, BMW 33176760287 replacement, E9x differential front support, rear end stability upgrade, drivetrain bush kit, BMW diff clunk solution, rear subframe diff mount front position.

Add to basket today for a simple, high-impact chassis upgrade that transforms the way your E9x 3 Series puts power to the road.