I had been runnin the Calmini 6" kit on my 95 tracker. I like the kit, but they dont supply you with the steering extension piece.In the directions, theirs a picture of what you need to make. Its not a big deal but you'll need it if you dont have a slip yoke style steering.
After the springs broke in. the rear was still way too stiff. The springs are designed to carry full gear, which I have on my rig. It didnt seem to help. You do have the option of cutting the rear spring. I did not do that.
The front springs felt great, after I put the Calmini winch bumper and a 90lb. winch on, the front end really sagged. I'm not happy

Besides that, the kit is not to hard to install. Calmini is real helpful if you need to call them for questions. Good luck!