Budget diesel truck mods: Ford Powerstroke edition

transamz9 wrote:

So no one tunes their dually? Aren't most duallies Aisin with 373 - 410 rears? I know around here most dailies are cab chassis.

Yeah, many tune their Cummins duallies for more power, but they can't tune the Aisin TCM along with it for a better shifting and lock up strategy. From what I have heard, adding anything more than 50 hp will cause the torque management to go on the fritz. It can easily handle more power, but the nannies of the trans will react to keep it in check.