TRAXXAS Slash 4x4 Rear CVD Cup Joint SSLA1277R/JT replacement for rear swing shaft by GPM  [SSLA1277R/JT]

Rear CVD Cup Joint for Slash 4x4

This spring steel cup joint is an aftermarket replacement created for the rear CVD universal swing shaft on 1/10 TRAXXAS Slash 4x4 models and is supplied as model SSLA1277R/JT. It is intended to mate with the SSLA1277RST rear CVD assembly and functions as a direct-replacement cup joint for that specific rear universal swing shaft.

Material and role: made from spring steel, the cup joint is chosen for torsional resilience and improved wear resistance where small-scale drivetrain parts are subject to shock and load. The cup joint transfers torque from the differential output to the rear driveshaft while allowing limited misalignment caused by suspension movement.

Installation and tuning notes: the part is designed to replace the factory cup joint on the SSLA1277RST rear CVD swing shaft and fits into the existing rear CVD housing using the vehicle's original retainers and hardware. During fitment, verify correct seating and free rotation through suspension travel to avoid binding or excess play. For tuning, changing to a stiffer or more wear-resistant cup joint can alter drivetrain feel under load and is a common maintenance or incremental upgrade step.