Mugen Seiki MTX-4 CNC Aluminium Rear Diff Housing - MTX4-32/TI by 3Racing  [MTX4-32/TI]

MTX-4 rear mount summary

This CNC-machined aluminium rear differential housing is made as a direct replacement for the Mugen Seiki MTX-4 chassis and carries the model number MTX4-32/TI. The design swaps the original housing for a more rigid aluminium unit to aid consistent rear-end behaviour during setup and running.

Use this housing when consistent differential alignment and chassis stiffness matter for cornering balance and gear mesh stability. It forms the mechanical interface for the rear differential assembly and works with bearings, output cups, and the rear gearbox on MTX-4 builds; confirm bearing seating and clearance before completing the installation.

While aluminium supports better alignment under load, this housing does not change the differential internals or gear ratios. Final tuning still depends on the internal components and diff oil selection used.

If you need a durable aluminium rear diff mount for the MTX-4, this housing is a practical upgrade; pair it with suitable bearings and diff internals during assembly for best results.