full size chevy.com has ALOT of info on this subject, as well as gmfull size. com
you could either make your own brackets or check out offroadunlimited .com is a more complete kit and gives you 3'' of lift with a stock spring. about 700 bucks
sky manufacturing.. about 350 bucks is less complete ( only the hangers. but is beefy and gives you 6'' of lift with a stock spring
you will need to run cross over steering. theres not a safe way around it
and unless you plan on changing transfer cases you are limited to a ford axle ( drivers side differential. were chevy axles were passenger side)