We run 2 deferent Trans the ZF 2 that was made for the ford gt 935 joints and bigger output shafts. The automatic can be paddle shifted and is capable of handling 1700 hp the axles are made by Mackenzie made from Meriging memory metal they can twist 2 1/2 times and not tack a set. This eliminates shocks in the drive train. theses car start off with 700 hp and one of the has 1700 hp