GM Transmission Repair in
Post Falls, ID
TH350, TH100, 700R4, 4L60, 4L80, 6L80, 6L90, 6T70, 8L90, 10L80, 10L1000 & Allison 1000 Service
If your GM vehicle isn’t shifting the way it should, trust the experienced team at Trans Doc Transmissions in Post Falls, Idaho. Since 1974, we’ve specialized in diagnosing, repairing, and rebuilding General Motors transmissions with precision and care.
From classic models to today’s advanced 10-speed systems, we have the tools, technology, and hands-on expertise to service your transmission correctly the first time.
Complete GM Transmission Services
We work on automatic and heavy-duty GM transmissions, including:
- TH350
- TH100
- 700R4
- 4L60
- 4L80
- 6L80
- 6L90
- 6T70
- 8L90
- 10L80
- 10L1000
- Duramax Diesel
- Allison 1000
Whether you drive a Silverado, Sierra, Tahoe, Suburban, Camaro, Corvette, or a Duramax-powered truck, we provide dependable solutions tailored to your vehicle.
GM Transmission Repair & Rebuild Specialists
Our services include:
Advanced computer diagnostics
Transmission repair
Complete transmission rebuilds
Torque converter replacement
Valve body and solenoid service
Transmission fluid service & hot flush
Differential and transfer case inspections
We take the time to fully inspect your vehicle and explain exactly what we find. Our recommendations are straightforward and focused on what your vehicle truly needs.
Duramax & Allison 1000 Experts
Heavy-duty GM trucks require specialized transmission knowledge. We regularly service Duramax diesel trucks equipped with the Allison 1000 and 10L1000 transmissions, ensuring proper performance for towing, hauling, and daily driving.
If your diesel truck feels underpowered, shifts inconsistently, or isn’t performing as it should, our team is ready to help.
Serving Post Falls & Surrounding Areas
Trans Doc Transmissions proudly serves:
- Post Falls
- Coeur d’Alene
- Hayden
- Rathdrum
- Dalton Gardens
- Spirit Lake
- St. Maries
- Silver Valley
- Kellogg
- Pinehurst
- Spokane & nearby communities.
- Post Falls
- Coeur d’Alene
- Hayden
- Rathdrum
- Dalton Gardens
- Spirit Lake
- St. Maries
- Silver Valley
- Kellogg
- Pinehurst
- Spokane & nearby communities.
Locally owned and operated, we’re known for honest service, experienced technicians, and reliable results.
Schedule Your GM Transmission Service Today
Don’t wait for transmission issues to get worse. Get professional GM transmission service from a shop that has been trusted since 1974.
today to schedule your appointment in Post Falls, Idaho.
