Re: How hard?
it depends on the height. I just installed a 2" Performance Accessories body lift on my '93 suburban. I got the whole thing done in less than 5 hrs with the help of a friend. The hardest part was getting the old body bolts off in one piece. Just make sure you have a breaker bar or a piece of pipe on hand. The 3" kit looked like it had some cutting and welding involved, which my 2" kit didnt need, so it was a snap. Just make sure you loosen 'em all up, and do one side at a time so all the holes line up. As you're jacking it up check for any lines, cables, etc. If u need more specifics lemme know.