Ive gotten 3 tanks thu it now and tried as hard as i could to trash the tranny but she took everything i could throw at her. This mod is amazing!!! With the high speed 3rd gear the truck gets it.... it moves as if it glides across the pavement. Again everyone with a 3 speed needs to do this mod its so easy. Even if you dont have 2 speed to cannabilize the parts would cost you like $8, so worth it