ok i have searched the site and i havent found anything that will help me.. so my 89 xj is sagging on the right rear. i have just put an iron rock 5.5 inch lift on it so i know the rear leafs are good. when i got under the jeep last night i saw that the floor right above the front leaf spring hanger is rusted and there are holes above the hanger. i was wondering if this could cause it to sag when the bolt is going into the uni-body. if someone could please tell me how to fix it or give some hints i would thank you a lot. thanks again..

 

I'm having somewhat of the same issue though mine is the springs. I do know that the unibody is a stucture of spread support. Kinda like a wind shield. If one part is weak then all of it is weak. You might have to so what ime going to do and that's replace the floor pan. If not that you might could weld in a peice of sheet metal though I'm not sure that will fix your problem

 

thanks man i know i have a hole in the floor right above my muffler. i might be getting a 90 2 door xj this week bc i found one that is cheap and looks like its rust free so. but i will try to put a new floor in the rear and hope it fixes it. do you think that maybe i got a bad leaf spring?