The Best GMC Repair in Colstrip, MT

Compare the highest-rated gmc repair mechanics in Colstrip, Montana. All shops are licensed, insured, and verified through our rigorous screening process.

#1

Colstrip Repair & Diesel

4.4
(85 reviews)
Verified

A long-standing, full-service local shop known for its honest diagnostics and ability to handle a wide range of repairs, from routine maintenance on light-duty trucks to more complex diesel and transmission issues. They are the first and most convenient stop for Colstrip residents.

500 Oak St, Colstrip, MT 59323

Specialties & Features

Diesel engine service
Transmission repair
General mechanical
electrical diagnostics

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

Certified Diesel & Electric

4.8
(240 reviews)
Verified

A highly specialized and top-rated shop in Billings, MT, explicitly focused on diesel performance, diagnostics, and repair. They are the regional experts for Duramax engines, Allison transmissions, and complex electronic systems, making them a worth-the-drive destination for serious GMC HD owners.

1226 Monad Rd, Billings, MT 59101

Specialties & Features

Duramax diesel service
performance
Allison transmission repair
Heavy-duty truck electronics

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
#3

A-1 Transmission & Auto Care

4.6
(190 reviews)
Verified

A well-established Billings shop with a stellar reputation for transmission work, including the complex Allison units found in GMC trucks. They also provide comprehensive general auto care, including 4WD system service, suspension work, and engine diagnostics, offering a strong one-stop-shop for GMC owners.

1015 Main St, Billings, MT 59105

Specialties & Features

Allison transmission repair
4WD system service
Heavy-duty suspension

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes

Why These Are the Top GMC Repair Auto Repair Shops in Colstrip

The GMC repair market in Colstrip itself is characterized by a single, reputable general repair shop (**Colstrip Repair & Diesel**) that handles the community's day-to-day needs. Given Colstrip's economic ties to the nearby power plant and mining, there is a high concentration of diesel-powered HD trucks, creating a strong demand for the specialized services you listed. However, the town's small size cannot support multiple, highly-specialized shops. Consequently, the competitive market for *expert-level* GMC repair is centered in **Billings, approximately 2 hours away**. Colstrip residents routinely travel to Billings for specialized automotive care, making the Billings market highly relevant. The competition in Billings is strong, with several shops competing on expertise in diesel performance, transmission rebuilding, and advanced electronics. Pricing is competitive for the region, with general mechanical labor in the $110-$130/hour range and specialized diesel/transmission labor ranging from $140-$170/hour. The overall quality of service available to Colstrip residents is high, but it often requires the 2-hour trip to Billings to access the top-tier specialists for complex issues like Duramax performance tuning or intricate Denali electronics.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All shops are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Colstrip regulations and climate