TRAXXAS UNLIMITED DESERT RACER Rear Drive Shaft UDR237S technical upgrade by GPM  [UDR237S]

Precision rear drive shaft for TRAXXAS platforms

This UDR237S rear drive shaft assembly is intended for TRAXXAS UNLIMITED DESERT RACER chassis and replaces the centre-to-rear driveline link to transmit torque from the centre gearbox to the rear differential. The set is supplied as a direct replacement and is engineered for upgrade use.

Materials and build: the joint components utilise stainless steel 304 for corrosion resistance at high-wear surfaces, while the shaft incorporates aluminium segments to reduce rotating mass without sacrificing stiffness. The shaft profile is increased compared to stock to improve transmission durability under demanding off-road loads. Silicon O-rings are fitted at the joint interface to reduce metal-to-metal contact and to absorb impact loads on the constant-velocity drive.

Installation and service: included fasteners allow a direct swap; confirm CVD spline engagement and driveline alignment during fitting, ensure O-rings are seated correctly, and verify suspension clearance to avoid binding. Inspect joints and replace O-rings after severe impacts to maintain reliability.

A practical performance upgrade for those seeking a stiffer, more durable rear driveline that protects the CVD interface while remaining straightforward to install and maintain.