Driveshafts center female 6061-T6 aluminum (blue-anodized) (front & rear) (for use with #9751 center driveshafts) (fits 1/18 TRX-4M vehicles with 161mm wheelbase) TRX9852-BLUEDriveshafts center female 6061-T6 aluminum (blue-anodized) (front & rear) (for use with #9751 center driveshafts) (fits 1/18 TRX-4M vehicles with 161mm wheelbase) TRX9852-BLUE