Rubber bushings in your rear toe and traction arms aren't a comfort feature. They're a handling compromise you've been living with.
The MMX Performance OEM Rear Toe/Traction Arm Bearing Set replaces the factory rubber bushings in your rear toe and traction arms with precision pillow ball bearings machined from billet 6061-T6 aluminum. Under hard acceleration, braking, and cornering, factory rubber allows these arms to deflect, shifting your rear geometry at exactly the moment it needs to hold. The MMX pillow ball design eliminates that deflection, locking in your rear toe settings so your chassis reacts the way your steering input expects.
What Bushing Deflection Actually Costs You
When the rear toe and traction arm bushings flex under load, the rear suspension geometry shifts. It's subtle, but your rear end gets less predictable, your tires heat unevenly, and you're making constant micro-corrections that a tighter chassis wouldn't need. Replacing those rubber pivots with pillow ball bearings gives the rear axle a fixed reference point under all conditions. What you get back is confidence: the car goes where you point it, corner after corner.
OEM-Fit. No Permanent Modifications.
These bearings drop into the factory rear toe and traction arm locations as direct OEM-fit replacements. No drilling, no cutting, no custom fabrication. Each bearing is rubber-booted to keep moisture and debris out of the pillow ball, so they hold up on the street and the track without additional maintenance. Fully reversible if you ever want to return to stock.
Key Features
- Machined from billet 6061-T6 aluminum for maximum strength and rigidity
- Precision pillow ball bearing eliminates factory rubber bushing deflection in rear toe and traction arms
- Maintains consistent rear toe geometry under acceleration, braking, and cornering loads
- Improves rear-end stability, chassis response, and handling predictability
- Promotes more even rear tire wear
- Rubber-booted bearing protects against moisture and road debris
- Direct OEM-fit replacement, no permanent modifications required
- Suitable for street and track use
- Fully reversible to factory specification
- SKU: MMR55-1650
Kit Compatibility
For a complete rear suspension bushing upgrade, this bearing set pairs with the MMX Rear Camber Arm Bearing Set (MMR55-1651). Full vehicle kits require 2x MMR55-1650 and 2x MMR55-1651. Vehicles already equipped with the MMX Adjustable Rear Toe Arm Set (MMR55-1609) require 1x MMR55-1650 and 2x MMR55-1651.
Vehicle Fitment
Fits the following BMW M models, including Competition and xDrive variants:
- BMW G87 M2 (2023-2025)
- BMW G80 M3 / G81 M3 Touring (2021-2025)
- BMW G82 M4 Coupe / G83 M4 Convertible (2021-2025)
- BMW F87 M2 / M2 Competition (2016-2021)
- BMW F80 M3 (2015-2018)
- BMW F82 M4 Coupe / F83 M4 Convertible (2015-2020)
Installation Notes
Direct OEM-fit bearing replacement. Professional alignment recommended after installation to verify rear toe settings.
- Raise and safely support the vehicle, then remove the rear wheels
- Remove the factory rear toe and traction arms and press out the OEM rubber bushings
- Press the MMX pillow ball bearings into the arm locations
- Reinstall the arms using factory mounting hardware and torque to spec
- Reinstall wheels, lower the vehicle, and schedule a professional alignment
A hydraulic press is required to remove the factory bushings and install the MMX bearings. Professional installation is recommended if you do not have access to a press.
