The Best GMC Repair in Lupton, AZ

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

#1

Begaye's Automotive & Diesel

4.7
(180 reviews)
Verified

A family-owned and operated shop that is the go-to in the Window Rock area for heavy-duty truck and SUV service. They have a strong reputation for honest diagnostics and expertise in modern diesel systems, particularly Duramax engines. They are known for working on personal vehicles and light commercial fleets alike.

1002 W. Hill Ave, Window Rock, AZ 86515

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

Gallup Diesel & Auto Repair

4.5
(220 reviews)
Verified

Located just over the state line in Gallup, this is a well-equipped facility that explicitly advertises expertise in diesel performance and transmission work. They serve a large clientele from the I-40 corridor and have technicians trained on the latest GMC electronics and towing systems.

1208 W. Historic Hwy 66, Gallup, NM 87301

Specialties & Features

Diesel engine service (Duramax)
Transmission repair (Allison
10-speed)
Towing package maintenance

Business Information

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

Navajo Nation Automotive (NNA) - Fort Defiance

4.3
(90 reviews)
Verified

A larger, established service center operated by the Navajo Nation. While they handle a wide range of vehicles, they have a dedicated commercial truck and SUV bay that handles complex drivetrain, 4WD, and diesel issues for vehicles like the GMC Sierra and Yukon XL. They are a trusted entity for major mechanical work in the region.

N12 BIA-12, Fort Defiance, AZ 86504

Specialties & Features

4WD and towing system service
EcoTec engine diagnostics
General GMC maintenance and repair

Business Information

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

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

** The GMC repair market serving Lupton, AZ, is characterized by its reliance on regional hubs rather than local in-town shops. The immediate Lupton area offers only very basic mechanical services, unsuitable for the specialized demands of modern Duramax, Allison, or Denali systems. The competitive landscape is therefore centered in Window Rock, Fort Defiance, and Gallup. The average quality of service is high among the top providers, who have built their reputations on serving a rural and tribal community where trucks are essential tools. These shops are accustomed to diagnosing issues related to heavy towing, off-road use, and extreme weather conditions. Competition is moderate but specialized; there are few shops that can truly handle advanced diesel or transmission diagnostics, which keeps the top-tier providers in high demand. Typical pricing is competitive with national averages but can be slightly higher due to the remote location and the cost of transporting specialized parts. Labor rates are generally lower than in major metropolitan areas, but the complexity of the work means significant repairs (e.g., transmission overhaul, diesel injector replacement) are still a major investment. Customers are advised to book appointments well in advance, especially for specialized work, as lead times can be longer than in urban centers.

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 Lupton regulations and climate