Top 3 GMC Repair Shops in Walling

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

#1

Cookeville Diesel & Auto Repair

4.8
(240 reviews)
Verified

Widely regarded as the premier diesel specialist in the Upper Cumberland region. While located in Cookeville, they are the go-to for complex Duramax and Allison transmission issues that general shops may not handle. They have a strong reputation for diagnostic accuracy and heavy-duty truck service.

1190 S Jefferson Ave, Cookeville, TN 38506

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

White County Auto & Diesel Repair

4.6
(180 reviews)
Verified

A highly-rated local shop in Sparta with a dedicated focus on both domestic diesel and gasoline engines. They have experienced technicians familiar with the full range of GMC trucks, from the EcoTec3 V6 to the Duramax, and are well-known for their 4WD and towing system services.

415 Bockman Way, Sparta, TN 38583

Specialties & Features

Diesel engine service
4WD and towing system service
EcoTec engine diagnostics

Business Information

Years in Business:8 years
Licensed:Yes
Insured:Yes
#3

Smithville Auto & Truck Repair

4.4
(110 reviews)
Verified

A longstanding, family-oriented shop known for its reliable service and broad technical capabilities. They serve a wide range of vehicles but have built a strong reputation for transmission work (including the newer 10-speed Allison) and general diagnostics on GM vehicles. They are a trusted local option for routine and complex repairs.

110 W Broad St, Smithville, TN 37166

Specialties & Features

Transmission repair
EcoTec engine diagnostics
Towing package maintenance

Business Information

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

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

** The GMC repair market serving Walling, Tennessee, is characterized by a reliance on reputable shops in neighboring commercial centers like Sparta and Cookeville. As an unincorporated community, Walling itself does not host dedicated GMC specialists with the advanced diagnostic equipment and certifications for the full range of requested services, particularly for Duramax and Allison systems. The competition level is moderate, with a handful of highly-regarded shops dominating the market for specialized truck repair. The average quality is quite high, as these businesses have built their reputation on serving a rural and agricultural customer base that depends on reliable heavy-duty trucks. Typical pricing is competitive with regional averages; expect labor rates between $110-$150 per hour. For highly specialized diesel work (Cookeville Diesel), rates may be at the higher end of this scale, reflecting their advanced expertise and tooling. Customers are advised to seek out shops with specific diesel and transmission certifications, as general mechanics may lack the resources for complex GMC diagnostics.

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 Walling regulations and climate