Hot Racing TE38PRO Pro-Line Performance HD Tranmission Gear Upgrade Made by Hot Racing; Hot Racing is a United States based company; parts are sourced from Chinese producers All Hot Racing upgrade parts are direct replacements for stock components; additional parts are not required Hot Racing part number TE38PRO; UPC 083745366082 This item works with: Pro-Line Pro-2 SC, PRO-MT; Traxxas Bandit Electric, Rustler VXL Velineon Brushless, Rustler XL-5, Slash 2WD all versions, Stampede Electric, Stampede VXL, Stampede XL-5