I noticed that the rear shackle flip seems to be pretty popular around here. I would guess that this points the pinion more toward the t-case. I was wondering /forums/images/graemlins/thinking.gif if this changes the angle of the pinion enough as to cause too much of an angle difference between the two u-joints and cause vibration? Does the "homemade" cutting torch version provide as much lift as the kits? Does it work as well?