ATSG TechTran service manual for the Dodge 48RE: operation charts, governor pressure diagnosis, valve body ID and full teardown sequence.
If you are about to tear down the 48RE out of a 2003-2007 Ram 2500 or 3500 with the 5.9L Cummins, or you keep chasing a no-3-4 shift or a lockup complaint on one, this is the book to have on the bench. It is the ATSG (Automatic Transmission Service Group) TechTran technical manual for the Chrysler RE family, and it covers the 46RE and 47RE as well as the 48RE, so one manual handles the gas Ram, Dakota, Durango and Grand Cherokee units and the heavy-duty diesel unit alike.
It is a printed manual, about 11 x 8.3 inches and 12.8 oz.
The 48RE looks like a 47RE from the outside, but the hydraulics are not the same, and that is where generic RE information gets people in trouble. Transmission Digest's technical editor describes the 48RE torque converter clutch solenoid being fed forward clutch oil instead of second gear oil, a real departure from the earlier units. Sonnax documents a 48RE line pressure rise of roughly 22 to 28 psi in fourth gear or with the converter clutch applied, against roughly 10 to 15 psi on a 46RE or 47RE. And from 2005 the diesel trucks replaced the throttle valve cable with an electronic throttle valve actuator that runs a 30-second initialization at key-on. A rebuilder who treats a 2006 48RE like a 1998 47RE will set it up wrong.
The manual is the step between a symptom and an order. Use its governor section with our 48RE governor pressure solenoid guide to decide whether the solenoid, the transducer or the valve body is at fault, and read our 48RE Cummins transmission problems guide for the failures that actually come back on these trucks. Then order parts against the valve body and separator plate identification in the book, not against the year alone.
This is a reference manual, so there is no vehicle fitment to match. It applies to the 46RE, 47RE and 48RE (the A518 and A618 electronic family) used in Dodge Ram 1500, 2500 and 3500 trucks, Dakota, Durango and Jeep Grand Cherokee. If you are working on the 48RE specifically, every part we stock for it is on the 48RE collection page.
A rebuild on these trucks usually starts with the 48RE overhaul kit, and if your pump shows gear or bushing wear, the 48RE pump for 2004-2007 is worth having on hand before the case is split.
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Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Yes. The ATSG book covers the 46RE, 47RE and 48RE together, including the valve body and separator plate differences between them.
It is a printed manual, roughly 11 x 8.3 inches and 12.8 oz.
The manual includes the electronic control and wiring sections for the RE family. For the TTVA specifically, also read the Transmission Digest article on its 30-second key-on initialization, linked in our sources.
Yes. The governor pressure solenoid and transducer section and the diagnosis charts are the starting point for no-upshift complaints, which are among the most common 47RE and 48RE problems.
Mopar ATF+4. Chrysler lists 8 pints for a pan service and 29 to 33 pints after an overhaul with the converter drained.
