Top 3 GMC Repair Shops in Sumner

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

#1

Lexington AutoTech

4.7
(180 reviews)
Verified

A well-established, family-owned shop known for its advanced diagnostics and ability to handle complex repairs on modern GMC trucks and SUVs. They have invested in specialized tools for Duramax and Allison systems and are a local go-to for Denali owners experiencing electronic or infotainment issues.

1202 North Washington Street, Lexington, NE 68850

Specialties & Features

Duramax diesel service
Allison transmission repair
Denali electronics
diagnostics

Business Information

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

Dawson County Repair & Diesel

4.5
(95 reviews)
Verified

This shop has built a strong reputation for its focus on heavy-duty truck service and diesel engine work. They are particularly skilled in suspension upgrades for towing and payload, as well as comprehensive towing package maintenance and wiring repairs. Their technicians have direct experience with GM's 10-speed transmissions.

801 East Pacific Street, Lexington, NE 68850

Specialties & Features

Heavy-duty suspension
Diesel
towing systems
10-speed transmission service

Business Information

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

Cozad Auto Center

4.3
(130 reviews)
Verified

A full-service garage with a long history of serving the communities of Dawson County. They offer a wide range of services but have developed specific expertise in GMC trucks common to the agricultural and ranching community, including 4WD system service and EcoTec engine diagnostics for smaller GMC models.

1702 Meridian Avenue, Cozad, NE 69130

Specialties & Features

4WD system service
EcoTec engine diagnostics
General GMC maintenance
repair

Business Information

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

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

The GMC repair market serving Sumner, Nebraska, is characterized by a reliance on reputable providers in neighboring towns, primarily Lexington and Cozad. Due to the rural and agricultural nature of the region, the expertise is heavily skewed towards servicing heavy-duty platforms (Sierra 2500/3500) and their complex systems like Duramax diesel and Allison transmissions. Competition is moderate among a handful of established, long-standing shops, which helps maintain a high average quality of service as these businesses rely deeply on community reputation and repeat customers. Typical pricing is competitive for a rural market but reflects the high level of specialization required for modern GMC trucks. Customers can expect labor rates to be slightly lower than in major metropolitan areas like Lincoln or Omaha, but parts costs are generally consistent nationwide. For major services like transmission overhaul or diesel injector replacement, residents are accustomed to traveling 15-20 miles for trusted expertise, as the in-town options in Sumner itself are non-existent for this specialized work.

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 Sumner regulations and climate