I just order a 6'in fabtech lift for an 02 GMC extended cab Z71 and wondering if there were any negative feedback on them. Does the dual shock mount really make a differance? I was going to go with skyjacker, but i heard that they had problems. I live close to skyjacker, superlift, and rancho but i don't see any problems with there lifts. People in another city are getting fabtech on nbs, because the dealership puts them on. I know of a off road place that puts them on to and they recommend fabtech. I don't know much about fabtech except their mainstream is 2wd trucks and not 4wd. Thanks for the help and any other suggestions.