ECX Rear Axle HD (2): 1:10 2wd Cir/Ruc/Tor Made by ECX Electrix; ECX Electrix is a United States based company; parts are sourced from China producers ECX Electrix part number 232001; UPC 605482081914 This item works with: ECX 1:10 AMP Desert Buggy, 1:10 AMP MT, 1:10 Torment Short Course