Turner Motorsport Monoball Rear Trailing Arm Bushings - E36 M3 / E46

Unlock rear-end grip and laser-precise handling on your BMW E36 and E46 with this Turner Motorsport spherical RTAB upgrade. If you are chasing predictable cornering, rock-steady toe control and repeatable geometry on circuit, fast road, drift or time attack, this rear trailing arm bearing conversion is the proven solution. Replace the squishy factory rubber with motorsport-grade uniballs and eliminate bushing flex that causes rear steer, instability under braking and vague feedback.

Why enthusiasts choose this rear trailing arm bearing kit:

• Zero-bind articulation for smooth suspension movement and consistent alignment
• Massively reduced compliance for sharper turn-in and improved traction on exit
• Keeps rear toe in check under load for confidence at high speed and under hard braking
• Track-developed performance with dependable, repeatable behaviour lap after lap
• Ideal for trackday builds, autocross, drifting, sprint and fast-road setups

What you will feel:

• More stable rear axle over bumps and kerbs
• Cleaner feedback through the chassis and steering
• A noticeable reduction in rear-end squirm when you really lean on the car

Real-world results:

Our team has installed and used these spherical rear trailing arm bearings on customer and in-house cars with superb results. Drivers consistently report tighter response, improved confidence and quicker, more consistent lap times. If you are serious about performance, this is the RTAB upgrade you want.

Note on comfort:

Because this conversion removes the soft factory rubber, there can be an increase in noise and vibration. If maximum comfort is your priority, consider staying with OEM-style bushes. If performance is the goal, this is the right choice.

Professional fitting recommended:

Alignment is essential after installation to maximise tyre life and grip. For expert fitting and geometry setup, book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Vehicle compatibility:

• BMW 3 Series E36
  • 318i, 318is, 318ic M42 1.8, M44 1.9
  • 323i, 323is, 323ic M52 2.5
  • 325i, 325is, 325ic M50 2.5
  • 328i, 328is, 328ic M52 2.8
  • M3 S50 3.0, S52 3.2
• BMW 3 Series E46
  • 323i, 323Ci M52 2.5
  • 325i, 325Ci, 325xi M54 2.5
  • 328i, 328Ci M52 2.8
  • 330i, 330Ci, 330xi M54 3.0
  • M3 S54 3.2
• BMW Z4 E85 E86
  • 2.5i M54 2.5
  • 3.0i M54 3.0, N52 3.0
  • 3.0Si N52 3.0
  • Z4 M Roadster and M Coupe S54 3.2

Search-friendly terms you might know these by: spherical RTAB kit, rear trailing arm bearing conversion, solid RTABs, rear control arm joint upgrade, uniball trailing arm bush, E36 RTAB upgrade, E46 RTAB upgrade, E46 M3 rear toe stability, BMW rear suspension bush replacement, track-ready rear trailing arm bearings.

Upgrade today for a tighter rear axle, cleaner feedback and confidence you can lean on every lap.