depending on the srpings will will get 2-3.5 inches of lift.
you will need;
the swap kit from sky's
http://www.sky-manufacturing.com/welcome.htm
if you wanna relocate your your shocks they also have the shock it and the u-blot flip kit
springs from a 90-98? chevy 1500, either 2wd or 4wd( 2wd are softer and have 3leafs, 4wd are a little stiffer and have 4leafs)
before...with a AAL on stock size tires
after, with a truck full of poeple on 33s
some flex shoots