The Best GMC Repair in Wallace, SC

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

#1

Certified Diesel & Performance

4.8
(240 reviews)
Verified

A highly-regarded, specialist shop focused exclusively on diesel performance and repair. They are the go-to experts in the region for complex Duramax diagnostics, performance tuning, and Allison transmission rebuilds. Known for their technical depth and ability to handle heavy-duty towing and suspension systems.

1233 Cherokee Rd, Florence, SC 29501 (Approx. 15 miles from Wallace)

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

Florence GMC Buick Cadillac

4.5
(180 reviews)
Verified

The official factory-authorized dealership for GMC in the region. This is the premier destination for warranty work, complex electronics, Denali luxury feature repairs, and factory-recalled service actions. Their technicians are GM-certified and have direct access to the latest technical service bulletins and proprietary diagnostic tools.

2691 David McLeod Blvd, Florence, SC 29501 (Approx. 17 miles from Wallace)

Specialties & Features

Denali luxury features and electronics
EcoTec engine diagnostics
Towing package maintenance

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
#3

Darlington Transmission & 4x4

4.4
(95 reviews)
Verified

A reputable, family-owned shop with a strong local reputation for durability and honest service. They specialize in the mechanical aspects of GMC trucks, particularly Allison and newer 10-speed transmissions, 4WD transfer case service, and differential work. A reliable choice for transmission rebuilds and 4WD system diagnostics.

936 S 4th St, Hartsville, SC 29550 (Approx. 20 miles from Wallace)

Specialties & Features

Transmission repair (Allison
10-speed)
4WD and towing system service
General drivetrain maintenance

Business Information

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

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

** The GMC repair market serving Wallace, SC, is characterized by a reliance on regional specialists in larger neighboring cities like Florence and Hartsville. Wallace itself offers general auto repair but lacks a dedicated, advanced GMC specialist. The market is not saturated with top-tier specialists, making the identified shops highly sought after. **Average Quality:** The quality of service is bifurcated. General maintenance is readily available, but specialized work requires traveling to a handful of highly competent, well-established shops, which consistently maintain high customer satisfaction ratings. **Competition Level:** Competition is moderate among the top-tier specialists, as each has carved out a slightly different niche (dealership, diesel performance, transmission/4x4). They compete on expertise and reputation more than price. **Typical Pricing:** Pricing reflects the specialization. Dealership labor rates are typically the highest ($140-$160/hr), followed by dedicated diesel/performance shops ($125-$150/hr). Specialized transmission and 4x4 shops are generally in the $115-$135/hr range. Parts markup varies, with independent shops often offering more competitive parts pricing than the dealership.

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 Wallace regulations and climate