Dinan Rear Trailing Arm Monoball RTAB (Bushing) Kit for BMW E36 E46 3 Series & Z4 (E85 E86) - 323i 325i 328i 330i 323Ci 325Ci 328Ci 330Ci M3 Z4 M - Spherical Bearing Upgrade

Dinan Rear Trailing Arm Monoball RTAB (Bushing) Kit for BMW E36 E46 3 Series & Z4 (E85 E86) - 323i 325i 328i 330i 323Ci 325Ci 328Ci 330Ci M3 Z4 M - Spherical Bearing Upgrade

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Dinan Rear Trailing Arm Monoball Kit for BMW E36 E46 Z4 is the proven rear suspension upgrade for sharper handling, improved stability and confidence-inspiring braking. This Dinan monoball RTAB kit replaces the factory rubber rear trailing arm bushes with precision ball joints housed in machined aluminium, eliminating bushing deflection, tightening up the rear end and reducing brake shimmy. The quietest bearings on the market are virtually noise free, so you get motorsport-level control with everyday comfort. Each bearing is sealed with a rubber boot to keep out dirt and road grime, helping prevent premature wear and keeping performance consistent over time.

We use this kit ourselves and our customers consistently report a noticeable improvement in rear-end grip, response and predictability. If you want your BMW E36, E46 or Z4 to feel precise, planted and responsive, the Dinan rear trailing arm monoball conversion is the upgrade to choose.

Key features

  • Replaces OEM rear trailing arm rubber bushes with precision ball joints in machined aluminium housings
  • Eliminates bushing deflection for crisp throttle response and more accurate rear axle control
  • Reduces brake shimmy and improves stability under hard braking
  • Quietest bearings on the market and virtually noise free for daily use
  • Fully sealed with a rubber boot to block dirt and road grime for long service life
  • Direct-fit performance suspension upgrade for BMW E36, E46 and Z4 platforms

Vehicle compatibility

  • BMW E36
    • 1992–1995 325i Sedan/Convertible
    • 1996–1999 328i Sedan
    • 1998–1999 323i Sedan
    • 1995–1999 M3 Sedan
  • BMW E46
    • 1999–2000 323i Sedan/Coupe/Convertible/Wagon
    • 2001–2006 325i Sedan/Coupe/Convertible/Wagon
    • 1999–2000 328i Sedan/Coupe
    • 2001–2006 330i Sedan/Coupe/Convertible including ZHP
    • 2001–2006 M3
  • BMW Z4
    • 2003–2006 E85 Z4 2.5 Roadster
    • 2003–2008 E85 Z4 3.0 Roadster
    • 2006–2008 E85 Z4 M Roadster
    • 2006–2008 E86 Z4 M Coupe

Why choose this Dinan RTAB monoball kit

  • Transforms rear-end feel on BMW E36, E46 and Z4 with tighter, more predictable handling
  • Ideal for drivers seeking a performance suspension upgrade with low NVH
  • Sealed spherical bearing design maintains performance in all weather conditions

Fitting and support

Professional installation is recommended and a four-wheel alignment should be carried out after fitting to optimise geometry and tyre wear. Nforcd offers fitting at our Warwickshire workshop. To request a quote, email Sales@nforcd.com.

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