I put the rear sudframes Whiteline in on Saturday and realised it was an install that was out of my league when I had trouble getting the rear bolts lined up. Took it to a place i get my alignments done thinking that a proper suspension place would have no issues. What does the young guy working on my car do? Despite me warning him about making sure the bolts were lined up exactly, after undoing the rear bolts he ignores what I told hm, and the pictures from this forum showing how to do it, and cross threads the right hand front bolt when it was about 3/4 home. Finished up using a thread file and saved the bolt thread so it ended up ok. I didn't have the opportunity to test what difference the sub frame and diff supports, I had both done at the same time, have actually improved if anything but to those considering the upgrade, this is NOT anywhere near as easy as one would think. To look at the instructions it looks as simple as unbolt, lower, install bushing supports, insert bolt and torque. As soon as you loosen and the remove the bolts the subframe will move, even if it's just a mm, and that mm movement will be the difference between success and heart break. In other locations you can get away with a cross thread. On the subframe a serious cross threading means the car basically can't be moved, even with 3 good bolts. You have been warned!! Anyone trying this now has as many experiences, facts, and info as physically possible. Key is to take your time, do not force the bolts, have the car high enough to actually see the holes, and do not think because the bolts screw in an inch they won't still cross thread. And don't use power tools under any circumstances!!! Oh and buy a rubber mallet cause chances are you'll need it
