HPI Racing 76979 Aluminum Threaded Pinion Gear 19Tx12mm Nitro RS4 3

HPI Racing - Threaded Pinion, 18 Tooth x12mm (1M), Orange, Nitro 3

HPI Racing Z238 C-Clip 13mm (4) Nitro 3 drift / Nitro RS4 3 Evo

HPI A559 Gear Shaft (1) Nitro RS4 MT / Nitro RS4 3 EVO+

Hardened Stainless Steel Spur Gear, 66 tooth for 1/10 HPI RS4 Sport 3 Flux Parts

HPI Racing Diff Pinion Gear Set: RS4 Micro HPI73403

HPI Racing Z238 C-Clip 13mm (4) Nitro 3 drift / Nitro RS4 3 Evo