Dick Cepek 5\" Lift? Anyone ever use a Dick Cepek 5" lift (I found a deal). Specifically the Maxi-Ride springs. Looking at these for the front (the salesman insists that they provide 6" of lift) and an ORD shackle flip w/ either a zero rate or a 2" add-a-leaf for the rear. Truck is a '90 3/4 ton Burb soon to have 35's. Light towing and light/moderate crawling after much highway driving is the intended use.