This may be way to early to ask but Im going to throw it out there as I will be needing a new transmission in the future. I have an 07 6.7 DPF EGR delete 4in turbo back with XRT Pro tuner. I tow a lot so need a solid transmission.

Whats the possibility of hooking the new AS69RC transmission to my truck. Got 240k on it and I can tell that 2,3,4 are having issues under load.

 

Go with a Revmax 68RFE and call it a day. It will not be worth the money and time to swap a AS69RC into your 07.5. Look into a revmax it will be a solid investment.

 

the TCM might be able to be re-flashed for an AS68RSC, as that transmission was available with the late 3rd gen C&C trucks, but like Motorops said, trying to get the 69 in there is probably going to necessitate, umm, a lot. even then, while the 69 is factory rated to hold 850ft-lbs of input torque, once you start turning up the tuner it's the same old song and dance: the trans still goes.

my two cents, revmax or suncoast (whichever poison you prefer) and be done with it.