Steel HD 1.5Mod 20T-25T-30T-35T Pinion/Spur Gear Kit For Traxxas 1/5 XRT X-MAXX

35T:6MM hole D slot, with M4 5 machine rice screw 1. 30T:6MM hole D slot, with M4 5 machine rice screw 1. 1 30T+30T set. 1 30T+35T set. 25T:8MM hole, with M5 5 machine rice screw 3. 20T: 8MM hole, with M5 5 machine rice screw 1.

eBay