On the first page the OP was asking about 1.5" lifts. I think he was asking about the rear specifically. If this is the case, then look up Icon Vehicle Dynamics. They make a high quality set of rear springs that will lift the truck 1.5". They are also much better than stock because they are 2 stage springs. The first stage is slightly softer than stock for a better ride. The second stage is 75% firmer than the first stage, which will allow the truck to handle heavier loads in the bed.
Caveat...nothing Icon makes is cheap, but it is great stuff. I have their stage 4 suspension on order. It is set to be delivered mid December. It wasn't cheap, but it should be light years ahead of the stock suspension when finished.
