After installing my 4" suspension lift, I noticed my front shaft seems pretty short. And whenever I'm at speed and let off the gas partially, I get what I can only assume is U-joint vibe. I also hear and feel it when wheeling up a steep incline. I've read here that the stock spacers under the tcase and be moved to facilitate the drop. What I want to know is how does this work with the back of the tranny? will it follow with no additional work necessary? Is this, in effect changing the drive line angle (starting at the engine back to the tcase)? If so, wouldn't dropping the tcase actually increase the angle of the front u-joints?