2003–2007 Dodge Ram 2500 Chrysler 48RE Transmission Repair
The 48RE is the 4-speed automatic behind the 5.9L Cummins in the 2003–2007 Dodge Ram 2500. Mid-2007 6.7L trucks moved to the 68RFE, so we confirm by VIN.
Transmission at a glance
Year-specific notes
- 2003 — 2003 is the first 48RE year, introduced with the common-rail 5.9L Cummins.
- 2007 — 2007 is a split year — early trucks kept the 5.9L and 48RE.
How to confirm your transmission
- The build sheet / sales code (DGQ / 48RE) identifies the transmission for your VIN.
- Cummins-powered 2500/3500 trucks are the applications covered here; gas trucks may use a different unit.
- The ID tag on the case confirms the build before parts are sourced.
Common Chrysler 48RE failure areas in the Ram 2500
Overdrive clutch and direct clutch wear are classic 48RE failures on trucks with added power.
Front and rear bands require correct adjustment; worn bands cause slip.
TCC wear or governor pressure problems.
Diagnostic considerations
- Scan codes and check governor pressure sensor and solenoid operation.
- Check fluid level and condition on the dipstick.
- Road test in all gears, including lockup behavior.
Repair or rebuild?
Band adjustments and governor/sensor issues can sometimes be repaired in place. Clutch wear in the overdrive section usually means a rebuild, often with upgraded parts on modified trucks.
Closely related vehicles
Request a quote for your Dodge Ram 2500
Frequently asked questions
Should I rebuild or replace the 48RE in my Dodge Ram 2500?
It depends on what failed, the mileage and the condition of the case, valve body and converter. We diagnose first, then explain the options before any work begins.
Do you give prices over the phone?
We don't quote a price before diagnosis because repair scope varies widely. Call 602-725-6800 or request a quote and we'll explain the next step.
Where are you located?
MBN Auto Diesel is at 6602 W Myrtle Ave, Glendale, AZ 85301, serving the Phoenix metro.