The Best GMC Repair in Weldona, CO

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

#1

T & M Auto & Diesel

4.7
(180 reviews)
Verified

A family-owned and operated shop known for its deep expertise in diesel engine performance and transmission work. They are the go-to for complex diagnostics on modern GMC trucks, particularly for Duramax and Allison systems. Their technicians are praised for being thorough, honest, and capable of handling both heavy-duty mechanical work and sophisticated electronics.

18513 Co Rd 20, Fort Morgan, CO 80701 (Approx. 8 miles from Weldona)

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

Morgan County Diesel & Auto Repair

4.5
(110 reviews)
Verified

This shop has a strong reputation specifically built on diesel engine service and repair. They cater extensively to the local agricultural and towing community, giving them direct, daily experience with the demands placed on GMC HD trucks. They are well-equipped for everything from routine Duramax maintenance to major engine overhauls and towing system diagnostics.

16901 Co Rd 17, Fort Morgan, CO 80701 (Approx. 7 miles from Weldona)

Specialties & Features

Duramax diesel service
Towing package maintenance
EcoTec engine diagnostics

Business Information

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

Gary's Garage

4.6
(200 reviews)
Verified

A highly trusted, long-standing general repair shop with a significant focus on GM vehicles. While they handle a wide range of services, they receive consistent positive reviews for their work on GM transmissions, 4WD systems, and electrical diagnostics. They are an excellent choice for GMC owners needing reliable service on Denali electronics, 4WD, and general powertrain issues.

201 E Platte Ave, Fort Morgan, CO 80701 (Approx. 10 miles from Weldona)

Specialties & Features

Transmission repair (Allison
10-speed)
4WD and towing system service
Denali luxury features and electronics

Business Information

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

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

** The GMC repair market for Weldona residents is effectively centered in Fort Morgan, the nearest significant commercial hub. The market is characterized by a handful of high-quality, independent shops rather than dealerships, which are located much further away in Greeley or Sterling. The competition level is moderate but healthy, with shops differentiating themselves through specific niches like diesel specialization (T & M Auto, Morgan County Diesel) or broad GM expertise (Gary's Garage). The average quality of service is high, as these businesses rely heavily on community reputation and long-term customer relationships. Pricing is generally considered fair and competitive, often lower than dealership rates. For standard maintenance on EcoTec engines, expect market-rate labor costs. Specialized work on Duramax engines or Allison transmissions commands a premium due to the required expertise and equipment, but the local shops provide significant value compared to the cost and inconvenience of traveling to a distant dealership.

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 Weldona regulations and climate