S1V4 Competition Ball Differential+1.3mm (1pr)Includes updated parts. REQUIRES DRIVE BONES PRR66401106 (67mm length) to use kit settings. This is due ..
"Carpet" S1V3 FM -5mm Carbon Fiber Narrow Chassis (Low roll center)**NOTE: For use with V4R, you will need the narrow "Carpet" RF suspension mount. PR..
"Carpet" S1V3 FM Aluminum CNC "Narrow RR" Suspension Block (Low roll center)Does fit newer kits, but may need top spacer between RR block and trans ca..