The Best GMC Repair in Diamondhead, MS

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

#1

C & M Automotive and Diesel

4.7
(180 reviews)
Verified

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

12010 Dedeaux Rd, Gulfport, MS 39503 (Approx. 10 miles from Diamondhead)

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

Superior Automotive & Truck Repair

4.5
(120 reviews)
Verified

Superior Automotive has a long-standing presence in the community and is frequently recommended for transmission work and general truck repair. They are known for their technical knowledge of 4WD systems and towing components, making them a reliable option for GMC Sierra and Yukon owners who use their vehicles for work or recreation.

1201 34th St, Gulfport, MS 39507 (Approx. 12 miles from Diamondhead)

Specialties & Features

Transmission repair (Allison
10-speed)
4WD and towing system service
EcoTec engine diagnostics

Business Information

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

A-1 Transmission Specialists

4.6
(90 reviews)
Verified

As the name implies, this shop is the area's go-to expert for all transmission-related issues. They have specific, documented experience with the GMC Allison transmissions and the newer 10-speed models. While transmission is their primary focus, their expertise extends to the drivetrain systems integral to 4WD and towing performance.

10393 Auto Mall Pkwy, D'Iberville, MS 39540 (Approx. 15 miles from Diamondhead)

Specialties & Features

Allison transmission repair
10-speed transmission service
Towing package maintenance

Business Information

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

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

** The GMC repair market in and around Diamondhead, MS, is characterized by a handful of highly specialized, independent shops rather than a high volume of general mechanics. Due to Diamondhead's proximity to the Gulf Coast and its affluent demographic, there is a significant concentration of GMC Sierra Denali, Yukon/XL, and heavy-duty trucks, creating a strong demand for the specialized services you listed. **Average Quality:** The quality is bifurcated. While there are many competent general repair shops, the top-tier specialists (like those listed above) offer a significantly higher level of expertise, particularly for diesel, transmission, and luxury electronics, often rivaling or exceeding dealership service departments. **Competition Level:** Competition is moderate but specialized. The shops with proven reputations for diesel and transmission work are few and maintain a steady customer base through word-of-mouth and long-term reputation. They compete less on price and more on specialized capability and reliability. **Typical Pricing:** Pricing for specialized GMC repair in this market is in the mid-to-upper range. A standard oil change is competitive, but complex diagnostics for a Duramax or an Allison transmission rebuild command premium rates, typically between $120-$150 per hour for labor. Customers are generally willing to pay this premium for assured expertise, avoiding the need to travel to a dealership in Mobile or New Orleans.

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 Diamondhead regulations and climate