The Best GMC Repair in Mount Ephraim, NJ

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

#1

A-1 Supreme Auto & Truck Repair

4.8
(240 reviews)
Verified

A-1 Supreme is a highly respected, family-owned auto and truck specialist with a formidable reputation for handling complex diesel and transmission work. They are known for their technical expertise, honest diagnostics, and ability to service everything from light-duty GMC Sierras to heavy-duty 2500/3500 series trucks. Their technicians have deep experience with the specific systems requested.

1400 Black Horse Pike, Gloucester City, NJ 08030

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

Gloucester County Truck & Auto Repair

4.7
(180 reviews)
Verified

Located a short drive away, this shop lives up to its name by focusing on truck-specific repairs. They receive consistently high praise for their work on 4WD systems, towing components, and engine diagnostics. Customers frequently mention their professionalism and ability to solve problems that other shops could not, making them an excellent choice for Denali electronics and EcoTec engine issues.

1000 Crown Point Rd, Westville, NJ 08093

Specialties & Features

4WD and towing system service
EcoTec engine diagnostics
Denali luxury features and electronics

Business Information

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

Precision Tune Auto Care - Bellmawr

4.5
(150 reviews)
Verified

As part of a well-known franchise with a strong local presence, this Bellmawr location stands out for its consistent service and broad technical capabilities. They offer comprehensive maintenance packages, making them a strong candidate for routine towing package maintenance and general GMC service. They have the specific tools and software for advanced GM electronics and transmission diagnostics.

35 West Browning Rd, Bellmawr, NJ 08031

Specialties & Features

Transmission repair (Allison
10-speed)
Towing package maintenance
General GMC service
diagnostics

Business Information

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

Why These Are the Top GMC Repair Auto Repair Shops in Mount Ephraim

** The GMC repair market serving Mount Ephraim, NJ, is characterized by a handful of highly specialized, high-quality independent shops located in the immediately adjacent towns of Gloucester City, Westville, and Bellmawr. Due to Mount Ephraim's small size, there are no shops within its borders that specialize exclusively in the high-level GMC competencies requested (e.g., Duramax, Allison). The market is not saturated with specialists, which elevates the reputation and demand for the top-tier providers. **Average Quality:** The quality of specialized service is generally high among the top-rated shops, as they compete on expertise and customer service rather than price alone. They invest in training and equipment to handle complex GMC systems. **Competition Level:** Competition is moderate. While there are many general mechanics, only a few shops have the reputation and technical depth to be considered true "specialists." This allows the top shops to maintain strong business without competing on the lowest price. **Typical Pricing:** Pricing for specialized GMC repair in this area is premium but competitive with dealerships, often at a 15-25% savings. Duramax injector replacement or Allison transmission overhaul can range from $2,500 to $5,000+, while standard maintenance and diagnostics are in line with regional averages. Customers are paying for proven expertise that avoids costly misdiagnoses.

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 Mount Ephraim regulations and climate