727 or 904 behind Cummins in a Ram Truck

[Dean Feiock]

Originally Posted by Chris Hill

Will a Mopar 727 or 904 transmission (sb or bb bellhousing) work behind a 5.9L cummins engine?

I'm thinking the OEM application would be a 1991 or 1992 dodge pick-up.

Thanks,

Chris

Chris,
To date, the Cummins has had six automatics put behind it. They are:

1) 727-Chrysler built
2) 47RH-Chrysler built-basically a 727 with an OD unit and Hydraulic Governor
3) 47RE-Chrysler built-basically a 727 with an OD unit and Electronic Governor
4) 48RE-Chrysler built-basically a 727 with an OD unit and Electronic Governor-High Torque Capacity
5) AS68RC-Built by Aisin Seiki-Six Speed-Fully Electronic-Has PTO Provision
6) 68RFE-Chrysler built-Six Speed-Fully Electronic

Starting with the 47RH, the alpha-numeric code describes the model designation:
The 4 means 4 forward gears---- a 6 means 6 forward gears
The 7 means high torque capacity-----an 8 would be the highest torque capacity
The R means rear wheel drive
The H means hydraulic control----the E means Electronic Control-----the FE means Fully Electronic Control

As already stated, the Cummins has it's own bellhousing pattern or block plate pattern-however you want to describe it. It is different than the SB and BB patterns. As already stated you could switch the block plate if you wanted to try a Ford or GM transmission.

If you are not going to use a controller, the 727 or 47RH would be your only option as they require no electronics to function.

Send me a PM if you have more questions

[dragst racer]

You might call A&A Transmission in IN. or check out their web site they are good with automatics especially those Chrys. Phone 317-831-3066 or aandatrans.com or aandatransmission.com