The Best GMC Repair in Dowelltown, TN

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

#1

Smith County Diesel & Auto Repair

4.8
(180 reviews)
Verified

Widely recognized as the premier diesel and heavy-duty truck specialist in the region. Located in nearby Carthage, they are the go-to for complex Duramax diagnostics, performance tuning, and Allison transmission rebuilds. Their technicians have advanced training and specialize in the needs of customers who use their trucks for serious towing and hauling.

145 Upper Ferry Rd, Carthage, TN 37030

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
#2

Advanced Automotive & Transmission

4.6
(120 reviews)
Verified

A highly reputable, family-owned shop in Smithville with a specific focus on transmission services and advanced drivetrain repair. They are experts on the GM 10-speed and Allison transmissions commonly found in modern GMC trucks and SUVs. They also provide comprehensive 4WD system service and towing package maintenance.

110 West Walnut St, Smithville, TN 37166

Specialties & Features

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

Business Information

Years in Business:18 years
Licensed:Yes
Insured:Yes
#3

Wilson Motor Company (GMC Dealership)

4.3
(250 reviews)
Verified

As the authorized GMC dealership in Lebanon, this is the top choice for warranty work, complex electronics, and maintaining the luxury features of Denali models. Their technicians receive direct factory training and have access to the latest proprietary GMC diagnostic tools and software, making them unrivaled for electrical issues and infotainment systems.

735 South Cumberland St, Lebanon, TN 37087

Specialties & Features

Denali luxury features and electronics
Factory-trained GMC service
Towing package maintenance

Business Information

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

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

** The GMC repair market serving Dowelltown, TN is characterized by a reliance on skilled regional specialists rather than in-town options. Due to the rural nature of the area and the prevalence of truck ownership for both work and daily use, the demand for competent diesel, transmission, and 4WD service is high. The competition level is moderate, with a few highly-regarded shops dominating the reputation landscape. **Average Quality:** The top-tier shops provide excellent, specialized service that often exceeds what is found in larger metropolitan areas for complex truck issues. However, consumers must be selective, as general repair shops may lack the specific tools and training for advanced GMC systems. **Competition Level:** Moderate. There are a limited number of shops with the equipment and certified expertise for Duramax and Allison services, which creates a semi-specialized market. **Typical Pricing:** Pricing is competitive with national averages for specialized auto repair. Dealership (Wilson Motor Co.) labor rates are typically the highest. Independent specialists (Smith County Diesel, Advanced Automotive) often offer more competitive labor rates while providing equivalent or superior expertise for their niche services. Expect a premium for diesel engine work and transmission overhauls compared to standard automotive repair.

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 Dowelltown regulations and climate