I recently picked up a 1987 D100. The truck runs great, but needs some suspension work. I'm going to replace all bushing and ball joints and while I'm at it going to install the B150 LCA for a modest drop. For the rear I'm going to install the drop shackle and spring mount relocation bracket from X2 industries. Looks like I can run the stock length shock in the front, but I think I'll need a shorter shock in the rear. What shocks are your running in the rear?