Hot Racing SLF250T Aluminum Slipper Spur Gear (50T 0.8M/32P) - Tra 4X4 All Hot Racing upgrade parts are direct replacements for stock components; additional parts are not required This item works with: Traxxas Rally VXL, LCG Slash 1:10, Slash 4x4 all versions, Stampede 4x4 VXL