HPI Racing replacement differential shafts for many RS4 kits. These shafts exit out the gear box and the end of the dogbones go into them. Constructed of black steel. This product includes two differential shafts. These diff shafts work on all HPI cars except the PRO Versions and the first production run RS4 kits.
Requires: All other differential parts and e-clips
- HPI Nitro RS4 3
- HPI Nitro RS4 3 EVO+