Quote:
Originally Posted by halibuthays
Good to hear, and the reason i posted it is 2013 is the first year RAM put the AISIN in a truck smaller that a 4500 and it in combination with the high output CIMMINS it is producing a HUGE 850 ft lbs of torque... Probably not exactly what was in the old Toyota.
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The Aisin was first put in the 4500 and larger 2007 with the Cummins 6.7l. Granted it was only putting out 650 ft pds of torque.
I suspect that they offered the Aisin in the 3500 due to customer demand vs the 68 rfe not
being stout enough.
My 07 3500 has a "bit" more than stock torque and the 68 rfe handles everything that I throw at it.
The 68rfe was designed and built specifically for the 6.7l.
Regular PM and keeping a close watch on the trans temperature when towing makes for a happy transmission.