dodge and allison transmissions

joshuajim wrote:
I believe that the 68RFE is all digital and will not work without the proper ECU and the proper ECU will not work with the V10.

Or the 5.9 is my understanding.

I believe that the 68RFE is all digital and will not work without the proper ECU and the proper ECU will not work with the V10.

Just had my 48re rebuilt by a local shop as first gear was beginning to slip after 154+k. They used heavy duty parts and a Suncoast converter for the same price as a factory reman. using stock parts. I have not towed with it yet, but headed out Saterday for a 4k trip. Nothing last forever.

I love the Dodge 68RFE transmission. I have a 2007 6.7L with the 68RFE. 75,000 miles mostly towing mountain grades and never a problem. Far better than the older 48 series trannies. Although a good rebuild by a shop that does more than toss in stock components will make a 48RE bullet proof.

If you rebuild a weak transmission using OEM Mopar parts, you aren't addressing the shortcomings. A 47RE/48RE that's built right will last the life of the truck, even behind an engine making big power.


There have been a few Dodge's with Allisons put in them, on various Ram forums.
There have been far more Duramaxes with built 47RE/48RE's in them, big-power guys on the Duramax forums. Google it...

The 48RE in my 06 Dodge Dually went out twice in 75k miles pulling my Toy Hauler. I sold it and went with an MDT with an 8.3L Cummins and a truly Heavy Duty Allison 6 Spd...

Your '99 Dodge tranny is 14 year old ancient tech. Dodge has uprated there trannies greatly since the '90s era.

I would look into the 48RE or a 68RE which is Dodge's latest. Check with a area Dodge truck salvage for crossover transmission cost for a low millage unit or a rebuilder.

ScottG wrote:
If you can spring for one of the newer 6.7 CTD it has a great 6 speed auto behind it that works every bit as well as the Ally.

The Aisin in my '08 ram 4500 (work truck) self destructed at 60,000 miles. Root cause was a sticking turbo causing over boost however.

Greentreena wrote:

Fire Instructor wrote:
after my research.I want the Cummins diesel, with the Allison tray, but no one makes that.....

actually you can, it a Ford F-650, at least the older ones.

Still can.

Greentreena wrote:

Fire Instructor wrote:
after my research.I want the Cummins diesel, with the Allison tray, but no one makes that.....

actually you can, it a Ford F-650, at least the older ones.

Just get a Freightliner chassis/Thomas bodied school bus and with a year a Navistar school bus. Or a older Ford "B" series school bus.