yep not breaking!braking! got a monster truck video (yeah i know!) and instead of using 3 foot discs(thats apparently what would be required with 2000bhp and that weight and those wheels!) they use a truck brake disc attached to the diff giving them a 19:1 advantage!!they did a demo and fook me they stop quick!could this not be used on a race car or summit? just wondering,not gonna fit one to me xr3i!