Do you have a 4x4 or 4x2? If you have a 4x2, then I am not sure - probably just some coil spring spacers. If it is a 4x4, then you have torsion bars, so you can either crank the torsion bar bolts to raise the front end or replace the keys with new versions that raise the front end more. There are commercial keys available, such as ones from Truxxx and Ready Lift, but this DT member had good success with keys he bought on ebay. Here is the thread:
I got my kit from Daystar. There are plenty of other companies out there that make them. I leveled my 2.5 but its sits a tid bit higher in the front. But I also kept the little rubber piece in. Most of the time if you get the kit you will need shocks to. Somebody has a kit for sale in the classifieds as far as the actual lift. Good luck finding a kit.