The Best GMC Repair in Nashua, MT

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

#1

Valley Auto & Diesel

4.7
(180 reviews)
Verified

A highly reputable, full-service shop known for its expertise in both gasoline and diesel powertrains. They are a cornerstone of the Havre automotive community, praised for their honest diagnostics and ability to handle complex repairs on modern and classic American trucks, including all GMC models.

1247 US Highway 2 W, Havre, MT 59501

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

Hi-Line Auto & Transmission

4.5
(95 reviews)
Verified

A specialized shop focusing on drivetrain and transmission services. They have built a strong reputation for solving difficult transmission and 4WD issues that other shops may turn away. Their technicians have specific training on Allison transmissions common in GMC trucks.

451 1st St W, Havre, MT 59501

Specialties & Features

Allison transmission repair
4WD and towing system service
EcoTec engine diagnostics

Business Information

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

Pro Auto & Electronics

4.3
(70 reviews)
Verified

While they service all automotive makes, they have developed a niche for in-depth electrical and electronic diagnostics, making them the go-to shop for complex issues in GMC Denali models. They handle everything from infotainment system glitches to advanced driver-assistance system (ADAS) calibration.

623 Cleveland Ave, Havre, MT 59501

Specialties & Features

Denali luxury features and electronics
Towing package maintenance
EcoTec engine diagnostics

Business Information

Years in Business:8 years
Licensed:Yes
Insured:Yes

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

** The GMC repair market serving Nashua, MT, is almost entirely centralized in Havre, approximately a 30-minute drive away. Given the rural, agricultural, and often rugged nature of the Hi-Line region, the quality of service for truck-specific repairs is generally high. Shops are accustomed to working on heavy-duty, 4WD, and diesel-powered vehicles used for farming, ranching, and towing. **Competition Level:** Moderate. There are a handful of highly competent, independent shops (like those listed) that compete with the local GMC dealership's service department. The competition is based more on reputation, specialized skill sets, and personalized service than on price alone. **Average Quality:** The average quality is good to very good for mechanical and drivetrain work. Expertise in advanced Denali electronics is less common, which is why a specialist like Pro Auto & Electronics stands out. **Typical Pricing:** Labor rates are typically lower than in major metropolitan areas, ranging from $110-$140 per hour. However, the specialized nature of diesel (Duramax) and transmission (Allison) work often commands a premium. Customers can expect fair pricing, but the cost of genuine GM parts and the complexity of the repairs mean that significant services are still a substantial investment.

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 Nashua regulations and climate