The Best GMC Repair in Tangipahoa, LA

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

#1

Louisiana Truck & Diesel

4.8
(180 reviews)
Verified

Widely regarded as the premier diesel and heavy-duty truck specialist in the region. They have built a formidable reputation for deep technical expertise on Duramax engines and Allison transmissions, particularly for customers who use their trucks for heavy towing and commercial purposes. Their technicians are extensively trained and they invest in specialized diagnostic equipment for modern diesel systems.

1427 Industrial Avenue, Hammond, LA 70401

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

T & S Transmissions & Auto Care

4.6
(220 reviews)
Verified

A long-standing, family-owned business known for its exceptional work on transmissions of all types, with specific acclaim for their Allison transmission rebuilds and repairs. They have expanded their services to become a full-service auto care center with strong capabilities in 4WD system service, differential work, and general engine diagnostics, making them a strong all-around choice for GMC owners.

895 W Church Street, Hammond, LA 70401

Specialties & Features

Allison transmission repair
4WD diagnostics
EcoTec engine diagnostics

Business Information

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

Precision Auto & Electronics

4.4
(90 reviews)
Verified

This shop has carved out a niche by combining reliable mechanical service with advanced electronics and diagnostics. They are a top choice for GMC Denali owners experiencing issues with infotainment systems, advanced driver-assistance features (like Super Cruise, if serviced), and other luxury electronics. They also handle standard maintenance and repairs for the full GMC lineup.

205 N 1st Street, Ponchatoula, LA 70454

Specialties & Features

Denali luxury features and electronics
EcoTec engine diagnostics
Towing package maintenance

Business Information

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

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

** The GMC repair market in Tangipahoa Parish is robust, reflecting the area's strong reliance on trucks for both personal and commercial use. The market is characterized by a mix of general repair shops and highly specialized diesel/transmission experts. **Average quality** is high, as shops must compete in a knowledgeable, word-of-mouth driven community. However, true specialization in areas like Duramax diagnostics or Denali electronics is concentrated among a few top-tier providers, as listed above. **Competition level** is moderate to high. While there are many general mechanics, the shops that secure the most lucrative and complex work are those with specific certifications, a long local history, and a proven track record with heavy-duty and luxury vehicle systems. Customers are discerning and tend to be loyal to shops that demonstrate expertise. **Typical pricing** is competitive with the greater Southeast region. General maintenance (oil changes, brakes) is reasonably priced. However, specialized services command a premium: Duramax injector replacement or Allison transmission overhauls can range from $2,500 to $7,000+, while complex electronics diagnosis can have high labor rates ($125-$150/hr) due to the required technical skill and equipment.

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 Tangipahoa regulations and climate