Anyone ever hear of a adjustable leveling kit? I just got a set of 275/75 dura grapplers and I would like to get the truck aligned before I put on the tires AND of course before I get aligned Id like get a 2" leveling kit up front. I could do the job myself but I figured Id check how much a spring shop would charge to put on the kit before they aligned it. They wanted $400 for the kit and to put it on. They bragged it was adjustable (just came out). Anyone know what brand this may be or anything about it. could it really be better than a standard 2" spacer?