I got the superlift suspension and came with diff drop. I had it for awhile now and no issue but I haven't taken it to a hard-core off roading. The shop that installed said he would be worried if it wasn't for the diff dropped. The superlift is about 3.5 inch. I'm watching this thread as well since planning on replacing my front Fox to Eibach in the future. How do we measure the angle of the drive shafts? I should have taken a pics before and after.The wear is one of my concerns. I'm also concerned with the angle at full droop as my dumb ass installed the Eibach kit set to 3.75" of lift!