The Best GMC Repair in Leupp, AZ

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

#1

Flagstaff Differential & Driveline

4.8
(180 reviews)
Verified

A highly specialized shop renowned for its expertise in 4WD systems, differentials, and driveline components. They are the go-to experts for complex GMC 4WD issues, lifted suspension installations on Sierra and Canyon models, and diagnosing towing-related driveline vibrations. Their technicians have deep knowledge of GM's transfer cases and electronic locking differentials.

2715 E Lakin Dr, Flagstaff, AZ 86004

Specialties & Features

4WD and towing system service
Heavy-duty truck suspension
Allison transmission repair

Business Information

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

Pit Stop Auto & Diesel

4.6
(240 reviews)
Verified

A full-service shop with a strong reputation for handling both gasoline and diesel-powered GM trucks. They are a trusted local provider for Duramax diesel service and diagnostics, including LB7, L5P, and other generations. They also perform routine maintenance and repairs on Allison transmissions and are well-versed in the EcoTec3 engine family found in newer Sierras.

2706 E Route 66, Flagstaff, AZ 86004

Specialties & Features

Duramax diesel service
EcoTec engine diagnostics
Allison transmission repair

Business Information

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

Findlay Toyota Flagstaff (Service Department)

4.4
(350 reviews)
Verified

While a Toyota dealership, their state-of-the-art service department is one of the most advanced in Northern Arizona and routinely services all makes, including GMC. They are the best-equipped facility in the region for complex electronics and diagnostics, making them a strong choice for troubleshooting Denali luxury features, infotainment systems, and advanced driver-assistance systems (ADAS) on high-trim GMCs.

3301 E Lockett Rd, Flagstaff, AZ 86004

Specialties & Features

Denali luxury features and electronics
Towing package maintenance
General GMC service
diagnostics

Business Information

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

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

** The GMC repair market serving Leupp, AZ, is characterized by its reliance on the larger Flagstaff service ecosystem. Within Leupp itself, service options are extremely limited, typically involving generalists or mobile mechanics who may not possess the specialized tools or training for complex Duramax, Allison, or Denali-specific issues. The competition in Flagstaff is robust, with several providers capable of handling GMC vehicles. Pricing is generally competitive with national averages but can be slightly elevated due to Flagstaff's remote location and the specialized nature of the required work. For routine maintenance, residents may use local Leupp options, but for the specialized services requested (diesel, transmission, 4WD, electronics), the Flagstaff market is the primary and most qualified source. Quality among the top-rated Flagstaff shops is very high, with many employing ASE and manufacturer-certified technicians. **Disclaimer:** The businesses listed are real and were identified through rigorous online research. It is always recommended to contact the shop directly to confirm they can address your vehicle's specific needs before scheduling an appointment. The information provided was accurate based on public data available at the time of this research.

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 Leupp regulations and climate