They do work out more than the gripper and quaife. But the gripper and quaife still use the ford 7.5 inch cwp that is a problem if you have high torque and good grip. So the only other choice you have is the ford 9 inch diff and the supra kit all in is cheaper than that. You could also take the route rod has with the jag set up but I've no idea how easy it is to source the part and how much it works out