Top 3 GMC Repair Shops in New Knoxville

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

#1

J & B Automotive & Diesel Service

4.8
(180 reviews)
Verified

A highly respected, family-owned shop known for its deep expertise in both domestic and diesel vehicles. They have built a strong reputation for honest diagnostics, quality workmanship, and specializing in the complex systems found in modern GMC trucks, particularly Duramax and Allison platforms. They are a top choice for heavy-duty truck owners in the region.

1005 Bellefontaine St, Wapakoneta, OH 45895

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

St. Marys Transmission & Auto Care

4.6
(120 reviews)
Verified

While "Transmission" is in their name, this established local provider offers comprehensive automotive care with a noted specialization in drivetrain and 4WD systems. Their technicians are proficient with GM electronics and are frequently sought out for transmission services, transfer case repairs, and towing system maintenance on SUVs and trucks.

1302 Executive Dr, St. Marys, OH 45885

Specialties & Features

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

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#3

Tom's Auto Repair & Tire

4.7
(90 reviews)
Verified

A trusted, full-service auto repair shop with a strong local presence and a team of ASE Certified technicians. They receive consistent praise for their customer service and reliability. While they handle all makes and models, they have significant experience with GM vehicles, offering diagnostics and repair for engines, suspension, and electronic features common in Denali trims.

9 Mark Dr, Wapakoneta, OH 45895

Specialties & Features

EcoTec engine diagnostics
Denali luxury features and electronics
Towing package maintenance

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes

Why These Are the Top GMC Repair Auto Repair Shops in New Knoxville

** The GMC repair market serving New Knoxville is characterized by a handful of highly capable, independent shops located in the neighboring, larger towns of Wapakoneta and St. Marys. Due to New Knoxville's small size, there are no dedicated GMC-only specialists within the village limits. The competition is not saturated, but the few top-tier providers are exceptionally busy, indicating high demand for quality work. The average quality of service is high, with these established shops relying on reputation and word-of-mouth in a tight-knit community. Pricing is generally competitive and often more favorable than the nearest GMC dealerships, which are located further away in Lima or Celina. Customers can expect fair labor rates, but specialized work on diesel engines or complex transmissions commands a premium due to the required expertise and equipment. For routine maintenance and most repairs, residents have excellent, trustworthy options within a short drive.

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 New Knoxville regulations and climate