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Built In-House in Ellensburg
Diesel Transmission Builds & Repair in Ellensburg
We build and repair diesel truck transmissions in our own shop, with the build matched to your truck, its engine and the work it does.
The transmission has to handle everything the engine and the load put through it. Towing, hauling and added power all change what a transmission needs. At Crossroad Garage in Ellensburg, we build diesel truck transmissions in-house and handle transmission diagnostics and repair. Tell us how the truck is used, what the transmission is doing now and what changes you have made or are planning.
Start with a diagnosis
Slipping, harsh or delayed shifts, shudder, overheating and warning lights do not always mean the transmission needs to come out. Some problems start with fluid, cooling, wiring or controls. We find the cause first, then discuss whether a repair, a rebuild or a built transmission is the right fix.
In-house diesel transmission builds
We build transmissions in our own shop, with the scope matched to the truck's workload and the rest of the drivetrain. Before work is approved, we go over what will be replaced, which supporting parts make sense and what to expect. A built transmission is not automatically required for every truck, and we will tell you when a repair is the better call.
Diesel transmission services
- Transmission diagnostics and repair.
- In-house transmission rebuilds and builds.
- Built-transmission options matched to towing, hauling and planned upgrades.
- Transmission cooling and supporting upgrades.
- Transmission work planned alongside engine and axle changes.
Match the transmission to the whole drivetrain
Engine output, tire size, axle ratio and load all affect what the transmission sees. If you are planning engine work, see our diesel engine builds and repair page. If you are changing tire size or gearing, see gears and axles. Planning these together avoids buying parts twice.
Diesel transmission FAQs
Do I need a built transmission?
That depends on the transmission, its condition, the load it carries and any planned upgrades. Ask us to review the whole combination before buying parts around a power claim.
Can you repair it instead of rebuilding it?
Sometimes. We diagnose first and discuss repair and rebuild options before recommending one.
What should I tell you when I call?
The year, engine, transmission, mileage, current modifications, symptoms and how the truck is used. That helps us plan the first visit.
Serving Ellensburg and Central Washington
Our shop is at 1607 W. Dolarway Rd, Building 1, Ellensburg, WA 98926. We welcome project inquiries from Ellensburg, Kittitas County, Yakima, Wenatchee and across Central Washington. If you are traveling to us, call before making the trip so we can discuss the vehicle, appointment and drop-off arrangements first.
How to request service
Call 509-306-9577 or email our service team. Include your vehicle, current setup, symptoms or goal, and preferred timing. You can also use the Contact Us page to request service. We will discuss the project before a booking or parts purchase is finalized.