Slash 4x4 Front Swing Shaft Spring Cup Joint SSLA1280FST/JT by GPM  [SSLA1280FST/JT]

Front Swing Shaft Cup Joint for Slash 4x4

This spring steel cup joint, sold under model SSLA1280FST/JT, is an aftermarket replacement made for the front CVD swing shaft on TRAXXAS Slash 4x4 trucks. It is intended as a direct-fit option for users replacing a worn cup or upgrading maintenance items in the front driveline.

The cup's spring steel profile resists permanent deformation from frequent articulation and torque spikes encountered in aggressive off-road running. As a consumable wear part, it restores tight engagement and helps remove sloppy movement that develops over time.

Installation follows standard procedures for front CVD service: separate the front swing shaft, check and clean the bearings and any retaining hardware, fit the cup into the yoke, and reassemble using the correct clips or fasteners. Good bearing condition and correctly set fastener torque will keep driveline feedback consistent.

For tuning, the spring steel cup offers durability with minimal compliance at the front CVD and does not change suspension geometry or gearing. It can, however, reduce perceived backlash and improve throttle and steering response when fitted to a healthy driveline. Verify fitment against your Slash 4x4 front CVD part numbers before fitting.