on my old truck (2nd gen) i installed a dunrite single disc TC and valve body. I towed heavily (~15k), was chipped and injectored and put over 80k on it without a single problem. I thought Tony was first class and was very easy to get a hold of when i had questions. He even spent about 2 hours on the phone working with the transmission shop that I used, when the bonehead at the transmission shop couldn't figure out how to do a couple of things. All in all I was happy with Tony's product and service and would definitely use it again. Of course my new truck came with a DTT already in it, which I am happy with, but if anything happens to it I will go back in the dunrite direction. Hope that helps.