The Best GMC Repair in Rockport, IL

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

#1

Monmouth Truck & Auto Repair

4.7
(180 reviews)
Verified

A highly-rated, family-owned shop known for its deep expertise in both light-duty and heavy-duty trucks. They are the go-to provider in the region for complex diesel and transmission work, with technicians trained on the latest GMC systems. They have a strong reputation for honest diagnostics and quality workmanship.

920 S Main St, Monmouth, IL 61462

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

R & M Diesel & Auto Service

4.6
(95 reviews)
Verified

While serving all makes and models, R & M has built a formidable reputation for its specialized focus on diesel performance and repair. They are particularly skilled with Duramax engines, including performance tuning and emissions system repair, which is a common need for GHD truck owners.

500 N 9th St, Monmouth, IL 61462

Specialties & Features

Duramax diesel service
EcoTec engine diagnostics
Towing package maintenance

Business Information

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

Monmouth GM Center

4.3
(250 reviews)
Verified

As the local authorized GM dealership, this is the premier destination for warranty work, complex electronics, and maintaining factory specifications. Their technicians receive direct factory training from GM, making them the top choice for diagnosing intricate issues with Denali luxury features, advanced 4WD systems, and the latest 10-speed transmissions.

1200 N Main St, Monmouth, IL 61462

Specialties & Features

Denali luxury features and electronics
4WD and towing system service
GM 10-speed transmission repair

Business Information

Years in Business:40 years
Licensed:Yes
Insured:Yes

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

** The GMC repair market serving Rockport, IL, is centered in Monmouth, approximately a 10-15 minute drive away. The market is characterized by a healthy mix of long-standing, reputable independent shops and a well-established dealership, creating a competitive environment that benefits consumers. * **Average Quality:** The quality of service is generally high, with multiple shops possessing the specialized tools and knowledge required for modern GMC trucks, particularly diesel and transmission systems. * **Competition Level:** Moderate. The presence of specialized independents (like Monmouth Truck & Auto and R & M Diesel) provides strong alternatives to the dealership (Monmouth GM Center), ensuring competitive pricing and customer-focused service. * **Typical Pricing:** Pricing follows a standard tiered structure. The dealership (Monmouth GM Center) typically commands the highest labor rates but offers OEM parts and direct factory support. The independent specialists offer more competitive labor rates, often 10-20% lower, while still providing high-quality aftermarket or OEM parts. For specialized diesel work, R & M Diesel's pricing is competitive with the general independents.

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 Rockport regulations and climate