That's why i replaced mine! In my opinion, it's all about how your using or going to use the truck. If your just going to tool around town, you might be fine. If you plan on pounding the crap out of the truck, upgrade the trans. No matter how much power you think you have or might have later. I plan on keeping my truck for well over 200k, i didn't want to have to open it up later, because i fed it too much power now.