I just wanted let members know what a stand up company T-rex engineering is. I ordered one of the first prototype suspension kits for 2003 3500 last year. The kit was very high quality and was user friendly on installation for those choose to do there own work. I was hesitant at first because of the price. After using the kit for a year, I feel it was the best money I have spent on the truck. The road ride is as good as a chevy half ton, and it's nice to know if I want to wheel my truck like it's in the baja 1000, I have the capabilities to do it. The customer service at T-rex is the best I have come across. Kent Kroeker one of the owners works with each customer to meet there individual needs. He recently upgraded my original shock towers for free with the newly designed ones because he felt they were a better design. He also revalved my shocks to accommodate my style of driving at no charge to me. Kent has taken the time to call me several times to make sure my installations have gone smoothly, and to make sure I was happy with the new valving, again offering to revalve if I was not happy. I am in no way affiliated with his company and wanted to let everyone know what a great product and customer service T-rex has.