ITEM NAME:Racing Heavy Duty Steel Gear Set 13T 38T Fit for Axial WRAITH SCX10 Front Rear Racing Heavy Duty Steel Gear Set 13T 38T Fit for Axial SCX10 WRAITH Front Rear Axle SPECIFICATIONS.(Racing Heavy Duty Steel Gear Set 13T 38T Fit for Axial SCX10 WRAITH Front Rear Axle. Compatible With: fit for Axial SCX10 WRAITH Front Rear Axle. 1 x 38T Ring Gear. 1 x 13T Pinion Gear. 2) Color may vary slightly due to the color setting of each individual monitor.