Getrag G360 5-Speed Manual
Type
Manual
Speeds
5
Years
1989-1993
Builder
Getrag
Paired with: Dodge D250/W250 and D350/W350, 12-valve Cummins 6BT
Simplified torque-flow diagram — where this transmission sits in the drivetrain, not a literal cutaway of its internals.
A German-built manual paired with a 13-inch clutch, the G360 was the only manual offered behind the first-generation Cummins for its entire 1989-1993 run. It has a reputation as the most fragile major driveline part of that generation, in a truck otherwise known for its Cummins engine's durability.
Strengths
- By 1993, the last year of the first-generation truck, the design was at its most refined version.
- With careful use and a common upgrade of overfilling the gear oil by about a quart, many owners report trouble-free service.
Known weaknesses
Well-documented durability problems; typical units need a rebuild every 75,000-125,000 miles, well short of the engine's own service life.
Note: Budget for a rebuild as routine maintenance rather than an unexpected repair.
The input bearing is a common failure point from heat, vibration, and load.
Note: Inspect and replace proactively during any clutch job.
Parts and rebuild expertise are harder to find than for later transmissions, since it was used for only four model years behind this engine.
Note: Source parts from first-generation Cummins specialists rather than a general transmission shop.
Sources
- GETRAG G360 Transmission Specs & Ratios (DieselHub) (accessed 2026-09-22)
- History Of The Cummins-Powered Ram (1989-1993) (DrivingLine) (accessed 2026-09-22)
- 1st Gen Cummins (1989-1993) Pros and Cons (Standard Diesel Direct) (accessed 2026-09-22)