What springs do you have under the rear? Factory? Aftermarket? According to UPS my 4.5 leaf mid-eye grab-a-traks are sitting under my garage as we speak.
i have rebuilt upper&lower control arms w/ 620 coils (need to cut) and 5-1/2 mid eye rear leaf springs w/ adjustable drag shocks in the front. Oh yeah and 1-1/8" sway bar