Black, Something has to going on with your rear set up to be going threw u joints like that. There
is to many fast cars that run the u joints without problem(noszcar and 1fastz). Both those
cars goes 9's and are not breaking the joints like you are????Is your diff mount fliped the right direction? When I first put mine in I noticed that the shafts had some angle on them. I then flipped the mount the other direction and
everything lined up perfect.