Fall-Line Motorsports RTAB Monoball Kit for BMW E46 M3 & E36 M3 – Rear Trailing Arm Spherical Bearing Conversion Suspension Upgrade – CNC Machined – Made in USA
Fall-Line Motorsports RTAB Monoball Kit for BMW E46 M3 & E36 M3 – Rear Trailing Arm Spherical Bearing Conversion Suspension Upgrade – CNC Machined – Made in USA
Fall-Line Motorsports RTAB Monoball Kit for BMW E46 M3 & E36 M3 – Rear Trailing Arm Spherical Bearing Conversion Suspension Upgrade – CNC Machined – Made in USA
Fall-Line Motorsports RTAB Monoball Kit for BMW E46 M3 & E36 M3 – Rear Trailing Arm Spherical Bearing Conversion Suspension Upgrade – CNC Machined – Made in USA
  • Load image into Gallery viewer, Fall-Line Motorsports RTAB Monoball Kit for BMW E46 M3 & E36 M3 – Rear Trailing Arm Spherical Bearing Conversion Suspension Upgrade – CNC Machined – Made in USA
  • Load image into Gallery viewer, Fall-Line Motorsports RTAB Monoball Kit for BMW E46 M3 & E36 M3 – Rear Trailing Arm Spherical Bearing Conversion Suspension Upgrade – CNC Machined – Made in USA
  • Load image into Gallery viewer, Fall-Line Motorsports RTAB Monoball Kit for BMW E46 M3 & E36 M3 – Rear Trailing Arm Spherical Bearing Conversion Suspension Upgrade – CNC Machined – Made in USA
  • Load image into Gallery viewer, Fall-Line Motorsports RTAB Monoball Kit for BMW E46 M3 & E36 M3 – Rear Trailing Arm Spherical Bearing Conversion Suspension Upgrade – CNC Machined – Made in USA

Fall-Line Motorsports RTAB Monoball Kit for BMW E46 M3 & E36 M3 – Rear Trailing Arm Spherical Bearing Conversion Suspension Upgrade – CNC Machined – Made in USA

Regular price
£408.00
Sale price
£408.00
Regular price
Sold out
Unit price
per 
Tax included. Shipping calculated at checkout.

Made in the USA by Fall-Line Motorsports.

Upgrade your BMW E46 M3 or E36 M3 rear suspension with the Fall-Line Motorsports RTAB Monoball Kit. This rear trailing arm spherical bearing conversion replaces the large factory rubber rear trailing arm bush with a motorsport-grade monoball for precise geometry control, reduced deflection and razor-sharp handling on fast road and track days. If you are searching for E46 M3 RTAB upgrade, E36 M3 RTAB monoball, BMW M3 rear trailing arm bushing, trailing arm spherical bearing conversion or BMW M3 suspension upgrade, this is the proven choice enthusiasts ask for.

Why choose the Fall-Line E46 M3 and E36 M3 RTAB Monoball Kit

  • Direct replacement for the OEM rear trailing arm bush on BMW E46 M3 and BMW E36 M3 with a high-quality spherical bearing monoball.
  • CNC machined aluminium housings for strength, rigidity and long-term durability.
  • Minimises RTAB deflection to maintain consistent alignment under load.
  • Improves rear toe stability, braking stability and corner-exit traction.
  • Sharper steering feedback with a more connected and predictable rear end.
  • Ideal for fast road, track day and performance driving where precision matters.
  • Fall-Line Motorsports engineering and quality control - made in the USA.

The stock BMW M3 rear trailing arm bush can flex heavily during hard cornering, acceleration and braking, creating rear toe change, vague rear-end feel and wobble under braking. The Fall-Line Motorsports RTAB monoball stabilises the rear axle, controls toe and camber more accurately and lets your E46 M3 or E36 M3 track straight, turn in faster and put power down with confidence. If you are comparing E46 M3 trailing arm bush upgrades or E36 M3 rear trailing arm spherical bearings, this Fall-Line kit delivers the precision serious drivers want.

Proven by us and our customers

We run this monoball RTAB kit on our own builds and customer cars, and the feedback has been outstanding. Expect a tighter, more planted BMW M3 that feels stable, responsive and consistent when pushed on road or track.

Fitment

Designed for BMW E46 M3 and BMW E36 M3 rear trailing arm bushing locations. If you would like help confirming compatibility for your specific car, get in touch with our team.

Installation and setup

Professional installation is recommended. A four-wheel alignment is advised after fitment to optimise geometry and tyre wear.

Want expert fitting in the UK We offer in-house installation at Nforcd, Warwickshire. Request a fitting quote: Sales@nforcd.com.

What this RTAB monoball upgrade delivers

  • E46 M3 RTAB upgrade and E36 M3 RTAB upgrade that eliminates excessive bushing flex.
  • Rear trailing arm spherical bearing conversion for consistent alignment on track and fast road.
  • Improved rear toe control under braking and cornering for confidence at speed.
  • BMW M3 suspension upgrade that enhances response without compromising precision.

Keywords: Fall-Line Motorsports RTAB monoball, E46 M3 RTAB, E36 M3 RTAB, BMW M3 rear trailing arm bushing, rear trailing arm spherical bearing conversion, BMW E46 M3 suspension upgrade, BMW E36 M3 suspension upgrade, trailing arm monoball kit, rear toe stability, braking stability, track day suspension, fast road suspension, Fall-Line Motorsports UK.