well let me start out with first the rear, use a 2" tough country lift spring, ord's 4" shackle flip and there 6" (which gives you 2" of lift) HD shackles. Oh and when you do this buy the 56" springs and turn the backwards to move your axle back. (when you do the 56's, you will have to drill new holes of the brackets.) Now the front is a little easier (if you want) the eaiest way is buy some 8" tough county soft ride springs and ORD's front HD shackles. i have everything on my 88k5 except i used superlifts front spring. If you want a little better articulation in the front use 56" front springs and move your purches forward. its a little more time, and im not sure its worth it. But some people do it. You can look under my name and see my lift in action.
T
PS. im on 37's and i did a little cutting. On the front fender your going to have to cut almost all the way to the fire wall but not really much going forward. the rear should be fine. And i used 4" rear springs and the 4" shackle flip.