Ram & Cummins
Ram Truck Transmission Repair in Kern County
From the half-ton Ram 1500 to the Cummins-powered 2500 and 3500, Ram trucks work hard across Kern County, and their transmissions are often the weak link. The Cummins diesel is one of our specialties, and we build these back stronger than the factory did.
Which transmission is in your Ram & Cummins?
Knowing which unit you have helps us pinpoint the problem fast.
8HP70 / 8HP75 (8-speed)
- Truck / years
- Ram 1500 (2013+)
- Notes
- Often a software fix first
68RFE (6-speed)
- Truck / years
- Ram 2500/3500 SO Cummins
- Notes
- Capable but under-built for the torque
Aisin AS69RC (6-speed)
- Truck / years
- Ram 3500/4500/5500 HO Cummins
- Notes
- Heavy-duty option
Give us the year and whether it's a 1500, a Standard-Output, or a High-Output Cummins, and we'll confirm your unit.
Diagnostic board
Common Ram & Cummins transmission problems we see
The Ram 1500's ZF-based 8-speed is often software-fixable first. The Cummins trucks are where the real work is: the 68RFE is capable but widely considered under-built for the Cummins' torque, and the Aisin has its own weak points. In a rebuild we upgrade the components and improve heat management so the truck holds up under the towing it was built for.
68RFE slipping / flare
RPMs jump between shifts, especially into 4th or 5th.
Torque-converter shudder
A low-speed vibration on both Cummins units.
Harsh or delayed shifts
Valve-body wear.
Overheating
Cooked fluid from towing heavy.
Whatever your vehicle is doing, our free diagnostic tells you whether it's a simple repair or something more.
By vehicle
Ram & Cummins we service
Pick your model for symptoms, which transmission you likely have, and how we fix it.
Ram & Cummins
Choose your model
Nissan CVT
Altima, Rogue, Sentra, Versa
Classic Cars
Powerglide, TH350, C6, 727
Foreign & Import
European, Japanese, Korean
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.
Frequently asked questions
Common questions about Ram & Cummins transmission repair.
It's capable but widely considered under-built for the Cummins' torque, especially towing or tuned. A proper rebuild with upgraded components addresses the weak points and makes it far more reliable.
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.