This battery strap is meant for use on the Traxxas Slash. Maybe it can fit on the other 2wd Traxxas as well with some modifications. It is based on the new style of clip on straps presented on the Traxxas 4TEC 2.0 and TRX4. The only modification required to the car is enlarging the hole where the hexagonal clip bar screws and make it all the way trough. Them you put a long screw from underneath and screw the pivot part onto it, and the strap onto the pivot part. The clip part replaces the one next to the esc location. Then you're ready to install your battery and send me a pic.