This PR Racing lightened transmission drive coupler set (2pcs) is a replacement part set for the following PR Racing vehicles:
- PRSB401 (LW) 4wd buggy
- PRS1 V3 (FM) 2wd buggy
- PRST1 V3 2wd stadium truck
Note: This drive coupler is required on the PR Racing PRSB401 4wd drive buggy when using the latest rear aluminum hubs (66402346).