Ok well depending on the condition of your tranny right now, meaning how much mileage it has seen as well as the type of use it has seen and how well it has been maintained, I would say as long as you dont rag on it and just drove the truck like a normal person without a whole lot of boosted launches, you'll be fine. I'm running 190/100s with roughly a stock sized turbo and I plan to have my tranny hold out for me. I also drive it conservatively as well and I make sure I am moving at least a little when I hammer down. Hope this helps.