Mod 1.0 Gear Set Traxxas Gear Replacement OGRC 46T Spur Gear & 18T Pinion Set For Traxxas X-Maxx, XO-1, Maxx & E-Revo 2.0 X-Maxx Replacement Parts Performance Gear Combo Hardened steel material, CNC machined for precision, easy to install and durable; 54T 1 Mod Hardened Steel Spur Gear with 18T 20T 22T Motor Pinion Gear for Traxxas 1/5 X-Maxx 1/7 XO-1 1/10 Maxx 1/10 E-REVO 2.0 VXL, Replace 6447 (54T) Add to cart Package include: 1 x 54T Mod1., 0 Spur Gear, 1 x 18T Pinion Gear, 1 x 20T Pinion Gear, 1 x 22T Pinion Gear; Steel Pinion and Spur Gear Set 0.8M 58T 32P Spur Gear 16T 18T 20T... The upgrade set can be directly installed, do need any modification, they are designed to allow more smooth rotation and strength; Hardened Steel 54T Spur Gear 1 Mod and 18T Motor Pinion,Fit If you are not satisfied with our product received, you can contact us for help!