leveling an 86 shorty

[86 GMG]

i have been on this site for alittle while now and a lot of you have lowered your trucks i want to do this but i drive on some rough roads some times (two big dips on mother inlaws paved road to her house) i dont want to have to slow down the road is fun to hall ass on ha ha ha. any way i think i want the ass end to be level with the front end with out having to do anything to the front. i have thought about the flip kit but i think it will lower it to much for my liking any suggestions as for as what to do, and not be cutting corners to make the truck un-safe or just flat out not the smartest thing to do. i have also put a f@#d 9 inch w\ disk no diffrents in hight as far as i can tell please give me as many ideas as you guys can thanks alot. MATT