The Best GMC Repair in Denton, MT

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

#1

Central Avenue Automotive

4.8
(180 reviews)
Verified

A highly respected, family-owned shop known for its honest diagnostics and expertise with both domestic and imported vehicles. They have built a strong reputation for tackling complex engine and transmission issues on trucks and SUVs, making them a top choice for GMC owners in the region.

301 1st Ave N, Great Falls, MT 59401

Specialties & Features

EcoTec engine diagnostics
Allison transmission service
4WD system repair

Business Information

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

Certified Transmission & Auto Service

4.7
(250 reviews)
Verified

As the name implies, this shop is a regional authority on transmission repair and rebuilding, with specific expertise in the Allison transmissions found in GMC HD trucks. They also offer comprehensive general repair services, with several technicians holding advanced certifications.

1108 10th Ave S, Great Falls, MT 59405

Specialties & Features

Allison transmission repair
rebuild
Duramax diesel service
heavy-duty towing system maintenance

Business Information

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

Lewistown Auto & Truck Repair

4.6
(90 reviews)
Verified

A well-established, full-service shop that serves as a critical service hub for the agricultural and rural communities in Central Montana. They have extensive experience with the heavy-duty suspensions and diesel engines common in GMC work trucks and are known for their practical, durable repairs.

520 NE Main Ave, Lewistown, MT 59457

Specialties & Features

Heavy-duty truck suspension
Duramax diesel service
general engine diagnostics

Business Information

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

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

** The GMC repair market for Denton, Montana, is characterized by a necessity for regional travel. As a very small rural community, Denton itself does not host a dedicated GMC or diesel specialist. Residents are accustomed to traveling to larger hubs like Great Falls (approx. 75 miles west) or Lewistown (approx. 65 miles east) for specialized automotive care. The competition in these surrounding markets is moderate but features several high-quality, independent shops that have earned strong community trust. These shops compete not on price alone but on reputation, technical expertise, and longevity. Due to the rural nature and the high cost of truck parts, pricing for specialized services (especially Duramax and Allison work) is at or slightly above the national average. However, labor rates may be more competitive than in major metropolitan areas. The overall quality of service available to a Denton resident is very good, provided they are willing to travel to these established providers in neighboring cities. For very complex electrical or Denali-specific luxury features, the dealership in Great Falls (GMC of Great Falls) is also an option, though typically at a higher cost.

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 Denton regulations and climate