This 4-piece screw pin kit is a direct-fit replacement for front and rear CVD drive shafts used on TRX4-based rigs. It replaces worn or missing fasteners that retain CVD joints, improving joint engagement and reducing driveline looseness during crawling and scale use.
To fit, remove the CVD assembly, inspect contact faces for wear, install the new pins and confirm correct seating and free movement before putting the axle back together. The pins are intended for upkeep and repair rather than increasing power handling.
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