Turner Motorsport Delrin Rear Diff Mount/Bush Kit for BMW Z3 & Z3 M, E30 & E30 M3, E36 318ti | Solid Differential Bushing Upgrade | Final Drive Mount

Rear end precision for BMW Z3, E30 and E36 Compact

Unlock sharper handling, cleaner power delivery and rock-solid traction with this performance differential bush kit from Turner Motorsport. By replacing the soft factory rubber with engineered Delrin and aluminium components, the rear axle stays located under load which gives you confident turn in, stronger launches and a more connected drive on fast road and track.

Why it belongs on your BMW

• Tighter rear end control for crisper cornering and predictable balance
• Minimises axle tramp and helps tame wheel hop on hard launches
• Reduces movement at the final drive for more consistent power transfer
• Motorsport-grade Delrin for durability and repeatable performance
• Aluminium hardware for strength and longevity

Note on refinement: as with any stiffer driveline bush, some additional NVH may be noticeable around 3,000 rpm. For the best results on performance builds, pair with solid rear subframe bushes as the diff is a stressed member in this platform.

We rate it highly

We run these on our own cars and have installed them for many customers. Feedback has been consistently positive, with owners praising the improved rear stability, better throttle response mid-corner and confidence when pushing on.

Vehicle compatibility

• BMW E30 325e - M20 2.7L
• BMW E30 325es - M20 2.7L
• BMW E30 325i - M20 2.5L
• BMW E30 325is - M20 2.5L
• BMW E30 325ix - M20 2.5L
• BMW E30 M3 - S14 2.3L
• BMW E36 318ti - M42 1.8L
• BMW E36 318ti - M44 1.9L
• BMW Z3 1.9 - M44 1.9L
• BMW Z3 2.3 - M52 2.5L
• BMW Z3 2.5i - M54 2.5L
• BMW Z3 2.8 - M52 2.8L
• BMW Z3 3.0i - M54 3.0L
• BMW Z3 M Coupe - S52 3.2L
• BMW Z3 M Coupe - S54 3.2L
• BMW Z3 M Roadster - S52 3.2L
• BMW Z3 M Roadster - S54 3.2L

Fitting and support

Professional installation recommended. For supply and fitting, speak to MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

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