The Best GMC Repair in Chinook, MT

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

#1

Chinook Auto & Diesel

4.6
(85 reviews)
Verified

A cornerstone of Chinook's automotive service scene, Chinook Auto & Diesel is widely regarded as the go-to shop for complex engine and drivetrain work. They have built a strong reputation for their practical knowledge of Duramax diesel systems and Allison transmissions, which are prevalent in the local fleet of HD GMC trucks used for farming and towing.

125 Indiana St, Chinook, MT 59523

Specialties & Features

Duramax diesel service
Allison transmission repair
4WD and towing system service

Business Information

Years in Business:18 years
Licensed:Yes
Insured:Yes
#2

Hi-Line Transmission & Auto Care

4.4
(60 reviews)
Verified

While "Transmission" is in their name, this Havre-based shop (a short drive from Chinook) is a critical regional specialist for complex drivetrain issues. They are the acknowledged experts for Allison transmission rebuilds and diagnostics, and their services extend to the 4WD systems and general maintenance of the trucks these transmissions are attached to, namely GMC and Chevrolet.

417 1st St, Havre, MT 59501 (Serves the Chinook area)

Specialties & Features

Allison transmission repair
4WD diagnostics
General drivetrain service

Business Information

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

Hi-Line Truck & Auto

4.3
(110 reviews)
Verified

This well-established shop offers a broad range of services but has developed a significant niche in truck repair. They are a reliable choice for suspension work on heavy-duty GMC trucks, routine maintenance of towing packages, and diagnostics for gasoline engines like the EcoTec series found in smaller GMC SUVs and pickups.

532 1st St, Havre, MT 59501 (Serves the Chinook area)

Specialties & Features

Heavy-duty truck suspension
EcoTec engine diagnostics
Towing package maintenance

Business Information

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

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

** The GMC repair market in Chinook, Montana, reflects its rural setting. There are no dedicated GMC or GM dealership service centers within the city. Instead, the market is served by a handful of independent, general auto repair shops that have evolved to meet the specific demands of the local clientele. The "competition" is less about numerous options and more about the proven reliability and specialized skill sets of a few key players. **Average Quality:** The quality of service is generally high, as these businesses survive on reputation and word-of-mouth in a tight-knit community. Shops are accustomed to working on the workhorses of the area—HD GMC trucks—and have practical, hands-on experience with their most common issues. **Competition Level:** Low to moderate. There are only a few shops capable of handling advanced diagnostics and repair, particularly for diesel and transmission systems. For highly specialized work (e.g., complex Denali electronics), owners often need to travel to larger cities like Great Falls. **Typical Pricing:** Labor rates are typically more affordable than in urban dealerships, ranging from $90-$130 per hour. However, pricing for complex jobs like a transmission rebuild or diesel injector replacement is in line with standard industry rates due to the high cost of parts and specialized tooling required. Customers value fair pricing and honest diagnostics above all else.

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 Chinook regulations and climate