The Best GMC Repair in Seward, PA

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

#1

Stoney's Auto & Truck Repair

4.8
(180 reviews)
Verified

A family-owned and operated business with a stellar reputation for honesty and expertise, particularly with GM trucks and SUVs. They are known for tackling complex diagnostics and repairs that other shops turn away, specializing in diesel performance, transmission work, and heavy-duty suspensions. Their technicians have deep, hands-on experience with the full range of GMC vehicles.

4214 PA-403, Hollsopple, PA 15935 (Approx. 6 miles from Seward)

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

Mike's Auto & Truck Service Center

4.6
(120 reviews)
Verified

A well-respected service center known for its technical proficiency and strong customer service. They have invested in advanced diagnostic tools specific to modern GM vehicles, making them a go-to for EcoTec engine issues and complex electronic systems found in Denali trims. They also offer comprehensive towing package installation and maintenance.

1205 Scalp Ave, Johnstown, PA 15904 (Approx. 12 miles from Seward)

Specialties & Features

EcoTec engine diagnostics
Denali luxury features and electronics
Towing package maintenance

Business Information

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

J&L Diesel & 4x4

4.7
(90 reviews)
Verified

As the name implies, this shop is a pure specialist focused on the core strengths of GMC trucks. They are the premier local experts for performance-oriented Duramax service, 4WD system repair and upgrades, and suspension lifts for heavy-duty models. Their work is highly regarded by local contractors, farmers, and truck enthusiasts.

329 Industrial Park Rd, Johnstown, PA 15904 (Approx. 10 miles from Seward)

Specialties & Features

Duramax diesel service
4WD and towing system service
Allison transmission repair

Business Information

Years in Business:8 years
Licensed:Yes
Insured:Yes

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

** The GMC repair market serving Seward, PA, is characterized by a handful of highly specialized, independent shops rather than a high volume of general mechanics or dealerships. Due to the rural and industrial nature of the region, expertise in heavy-duty trucks, diesel engines, and 4WD systems is a common and critical strength among the top-tier providers. Competition for these specialized services is moderate but high-quality; the shops that have built a strong reputation are extremely busy, reflecting a high local demand for their specific skill sets. Typical pricing is competitive but reflects the expertise required. Consumers can expect to pay a premium over general repair shops for Duramax or Allison-specific work, but this is offset by higher first-time fix rates and deeper technical knowledge. Customer loyalty is very high, with many patrons using the same specialist for over a decade, indicating a market that values trust and proven results over price-shopping.

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 Seward regulations and climate