Quote Originally Posted by Terror Custom Tuning View Post
I'm with others its a crap shoot there is no set horse power that your tranny will fail they can fail with stock tuning and they can hold power up to a point on some trucks. you can help by not beathing on it especially in OD. and steve not all 08s where bad
Yeah I know. I had an 08 with an 07 production date. Maybe that explains it. 4 transmissions though.

You'll be impressed if you do just air on the 67. I used the Shibby Stage 2 air horn and a remote heater. (Replaces the flapper valve) and did a grid heater delete. Whoa. The factory has it choked up pretty good