Member 01B3000 just did a spindle lift on his truck. Hopefully he will chime in and give us his take on it. I think for now, shop around ebay for spindle lifts, also check Summitracing.com for them. You should need the spindles, bigger shocks and rear leaf lift shackles
You can also get 2" spacer for the front coils, then lift shackles for the rear and body lift it. The body lift kits for your truck SHOULD be under 200.00 at summitracing.com