TAMIYA Hotshot / Super Hotshot / Boomerang / Bigwig Aluminum Rear Gear Box - JR-THS13-BK by Jazrider  [JR-THS13-BK]

Aluminum rear gearbox for TAMIYA Hotshot family

This aluminum rear gear box is a direct-fit aftermarket option for Tamiya Hotshot series models listed above, supplied with a black finish. It serves as a metal replacement for the original plastic housing and is aimed at hobby-scale repair and setup tasks.

The unit is intended to improve structural stiffness around the rear gears; a firmer housing helps keep gear mesh consistent under load and can reduce deformation that affects backlash and driveline feel. Fitting the part involves removing the stock rear housing and transferring the internal gears and bearings into the new aluminum casing, taking care to preserve alignment and clearance relative to the chassis.

Select this aluminum rear gear box when you want a durable metal housing for repair or set-up work on the listed Tamiya vehicles; it is designed to maintain fit and structural consistency without changing gear ratios or internal gear geometry.