Hot Racing High Lift Shock Springs Gold TRA GTR Shocks (2) 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 RVO5075; UPC 083745335187 This item works with: Traxxas E-Revo 5603 5605 5608, Jato 2.5 and Jato 3.3, Revo 3.3 5309, Summit