Tamiya M07 4mm Differential Joint M07-01G by 3Racing  [M07-01G]

M07 diff joint overview

This M07-01G is a 4mm differential joint made to fit Tamiya M07 series touring car differentials. It is an aftermarket hop-up replacement intended to sit inside the diff assembly and transfer drive while keeping correct spline alignment and rotation.

Fitment is focused on the Tamiya M07 platform and common M07 hop-up configurations; this listing does not cover unrelated chassis. Use this part when replacing degraded joints or when refreshing differential internals during routine service or setup changes.

Installation is straightforward for those familiar with M07 diffs: remove the diff from the chassis, open the case, swap the old joint for the 4mm unit, check clearances and reassemble. Verify spline alignment and free rotation before refitting the differential to avoid binding under load.

Tuning role: although compact, the joint affects rotational freedom and drivetrain reliability. Used alongside correct differential oil, gear mesh and bearing condition, it helps maintain predictable power transfer for more consistent lap times.