Tamiya M1025 Hummer Rear Drivetrain Joint Steel HM1041SR Upgrade for TA-01/TA-02 by GPM  [HM1041SR]

Steel rear drivetrain joint tailored to M1025 Hummer

This steel rear gear box joint fits the Tamiya M1025 Hummer layout and is supplied under model HM1041SR. Sold as 1 pcs, it is an aftermarket replacement intended to take the place of the original rear gearbox joint on compatible TA-01 and TA-02 chassis.

The metal construction offers an upgrade path from plastic components, increasing drivetrain stiffness for builds focused on durability or improved feedback. The part installs into the rear gearbox cavity and uses the chassis original mounting points for a direct swap on correct layouts.

Before completing the rebuild, verify shaft alignment and gear engagement, check bearings and gear surfaces for wear, and run the assembly by hand to confirm smooth rotation. Follow normal RC workshop checks when tightening hardware and performing live tests.