Yokomo Y2-RAC5 Upper A arm Pin for YD-2/PLUS/EX replacement upper A-arm pin set  [Y2-RAC5]

Upper A-arm pin for YD-2 rear

This Y2-RAC5 pin is a direct-fit replacement intended for the upper A-arm location used in Yokomo YD-2 series rear suspension assemblies. It serves as the retention pin that secures the upper arm pivot point in the Y2-RAC rear A-arm SP kit and is useful when refreshing worn pins during routine maintenance or rebuilds.

Installation is straightforward: remove the old upper pin from the A-arm mount, align the replacement pin with the arm and suspension bracket, and confirm secure seating and free articulation of the arm. After installation, check for any lateral play and verify smooth movement through the suspension travel to maintain predictable handling.

The part plays a simple but important role in tuning and setup because worn or loose upper pins can introduce unwanted slop in the rear suspension, affecting toe and camber consistency under load. Replacing these pins is a low-effort way to restore tighter steering response and more consistent rear traction on YD-2 platforms.