So I was at Home Depot yesterday and saw a guy with a V8 Colorado so naturally I had to go shoot the shit with him since its very rare I see another V8. So we started talking he told me he had had his transmission go out on him twice, both times were covered under warranty, first time was a rebuild and the second time they put in a brand new one. Why do I bring this up? Because I have had my transmission go out on my V8 Colorado too and I have about 20,000 on my rebuilt transmission. Have you guys had any problems with your transmissions? His truck was a 2012 and mine is a 2009. I'm getting ready to throw a supercharger on my truck, and in addition I'm installing a efan and transmission cooler. I'm a little worried about the stock transmission now to tell you the truth though.