I have a 1990 Cherokee with the 4.0L. The power steering pump is leaking out of the back of the pump. I used a dye in the fluid to pin point the leak, then turned to the FSM for a rebuild procedure. No rebuild procedure. The pump works great, only a couple years old (PO replaced). Amazon has the o-ring kit for $12, a new pump is $75. Anyone have a repair procedure for the pump? I hate to start digging into this pump blind.