When I bought my truck it came with a 4 inch block in the rear I am going to remove them but I need the stockish length ubolts. I ordered a set and got the fronts for an 85 and under, after about 2 weeks worth of messing with the parts people they come to the conclusion that they can't help me, it seems that the only rear shackles they have are the long ones already on my truck. So if anyone has a set sitting in their parts bin collecting rust let me know.