DocMorro,
I never paid for the 5.5" kit, I paid for the 4" kit, which is about $125 higher, since it includes new rear springs whereas the 5.5" kit uses your stock springs in a spring over set-up. The actual cost of my kit is hard to give you since I price haggled the parts into the price for installation. Most advertised prices are $600 for the 5.5" kit, but that really doesn't include everything you need. There are additional charges for the brake hoses, radius arm bushings, shocks, etc.
I also bought the superunner steering system (which is wonderful-you won't regret buying it) and superunner extended radius arms (same as the steering-much better ride and articulation). All in all, the parts cost around $2000, if you include every single thing except the labor (I used Rancho RS9000 shocks).
The installation was done at Chux Trux in Independence, MO, which is a suburb of Kansas City. I purchased the parts through them also.
The 5.5" kit works very well. The ride is much better than the 4" kit, mainly because of using the stock rear springs instead of the new, higher arched 4" springs.
One note: After installing the 5.5" kit, make sure someone qualified checks the length of the rear driveshaft. I had a new custom driveshaft built because I only had about 1.5" of stub in the shaft, creating vibrations and noises. Plus my old shaft was pretty well worn and didn't come with nylon covered splines, like my new one does.
Another consideration is correct pinion angle. The spring perches Superlift supplies just set into the old perches and are secured only by the springpack U-bolts. I had them welded to the axle housing and set at the correct angle to the output of the transfer case to match the operating angles of both U-joints. The angle of the Superlift perches set my pinion angle too low, and it is advisable, for safety and performance reasons, to weld the perches to the axle housing.
Sorry to get off on these tangents but figure people should know what they're getting into.
DOGMAN
