My 88 cherokee is pretty worn out i'll admit, but I'd like to keep it in descent shape to be a daily driver when needed. I see shocks are insanely cheap so I'll be replacing those shortly. Something I notice is that the rear end is sagging pretty badly. It looks like the leaf springs are almost starting to arch the opposite direction they should be at times. Are there any cost effective solutions for this? I see something called an add-a-leaf which is supposed to help worn out springs, but it says not recommended for vehicals with 3 leaf springs, which my jeep does have. I'm sure it wouldn't be cost effective to replace the leaf springs all together, so what does one recommend as the cheapest solution?