Ram & Cummins · Ram 2500 & 3500 Cummins
Ram 2500 & 3500 Cummins Transmission Repair in Kern County
If your Ram 2500 or 3500 Cummins is slipping, shuddering, or shifting hard, you're not alone, these trucks make enormous torque and the transmission is often the weak link. The Cummins is one of our specialties, and we build them back stronger than the factory.
Diagnostic board
Signs your Ram 2500 & 3500 Cummins transmission needs attention
These are what you searched for. If your vehicle is doing any of them, don't wait, small issues get expensive fast.
Slipping or flare
RPMs jump between shifts, especially into 4th or 5th.
Low-speed shudder
A classic sign the torque converter is failing.
Harsh or delayed shifts
Sudden bangs, often from valve-body wear.
Overheating
Cooked fluid from towing heavy in the heat.
No forward movement
On some 2022+ trucks, a known snap-ring failure.
Warning light
DTCs like P0731.
Noticing any of these? Get a free diagnostic before it gets worse.
Which transmission is in my Ram 2500 & 3500 Cummins?
Reassurance and expertise, not a spec sheet. Not sure which you have? Give us the year and engine.
68RFE (6-speed)
- Truck
- 2500 / 3500 (2007.5+)
- Engine
- 6.7 Cummins SO
Aisin AS69RC (6-speed)
- Truck
- 3500 HO / 4500 / 5500
- Engine
- 6.7 Cummins HO
Not sure which you have? Give us the year and whether it's Standard or High-Output, we'll confirm it.
Common Ram 2500 & 3500 Cummins problems, and how we fix them
The 68RFE's overdrive clutch struggles to stay locked under load, fluid cooks, and the valve body wears, the transmission gives up under the very towing it was sold to handle. In a rebuild we upgrade these components and improve heat management. Torque-converter shudder is common on both units and we replace it with a properly matched converter. Certain 2022+ Aisin HD trucks are under a 2024 NHTSA investigation for a K1 snap-ring defect (DTC P0731); we diagnose and address it properly.
What success looks like
Diagnosed honestly, fixed right, back to work fast.
A Kern County customer brought us a 2015 Ram 2500 with transmission problems. We rebuilt and upgraded the 68RFE, and the turnaround and service earned a five-star review. That's the standard: diagnosed honestly, fixed right, built stronger, back to work fast.
You're covered
We stand behind every repair.
When you trust us with your transmission, you're protected. We've stood behind our work for three generations, and every repair is backed by our warranty.
Real reviews from Google & Yelp
Kern County has trusted us for 70 years.
Worst-case rebuild, and they had it done in a day and a half. The guys worked late and came in early to get me back on the road.
Frequently asked questions
Common questions about Ram 2500 & 3500 Cummins transmission repair.
It depends on the year and engine. Give us those and we'll confirm the exact unit, no guesswork.
Tell us what you're driving. We'll take it from there.
Book your free diagnostic in under a minute. Only your name and phone are required, and the slot is yours as soon as you submit.
Free diagnostic, no obligation. Warranty honored at all 5 locations.