The Best GMC Repair in Keystone, SD

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

#1

Corvairs & Classics Auto Repair

4.8
(185 reviews)
Verified

While the name suggests a classic focus, this highly-rated shop in nearby Rapid City has built a formidable reputation for modern diesel and transmission work. They are known for their technical expertise, particularly with complex Duramax and Allison systems, and are a trusted name for heavy-duty truck owners throughout the Black Hills.

1616 W Omaha St, Rapid City, SD 57701

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

Graham Automotive

4.7
(220 reviews)
Verified

A well-established, full-service shop in Rapid City known for its comprehensive diagnostics and honest service. They have specific technicians skilled in GM platforms, including the EcoTec3 engines found in half-ton trucks and SUVs, as well as advanced electrical and towing system diagnostics.

1614 E North St, Rapid City, SD 57701

Specialties & Features

EcoTec engine diagnostics
Towing package maintenance
4WD and towing system service

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#3

Black Hills Diesel & Repair

4.9
(90 reviews)
Verified

This is a premier specialty shop located in Sturgis, a short drive from Keystone. As the name implies, their primary focus is diesel performance, repair, and maintenance. They are the top-tier choice for serious Duramax owners, offering everything from routine maintenance to complex engine overhauls and performance upgrades.

1425 Junction Ave, Sturgis, SD 57785

Specialties & Features

Duramax diesel service
Heavy-duty truck suspension
Allison transmission repair

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes

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

** The GMC repair market serving Keystone, South Dakota, is characterized by high-quality, independent specialists located in the surrounding Black Hills region rather than within the town itself. Due to Keystone's tourism-driven economy and small population, there are no dedicated GMC-specific repair shops within the city limits. The market is therefore reliant on established providers in Rapid City (approx. 25-minute drive) and Sturgis (approx. 35-minute drive). **Average Quality:** The quality of service is generally very high. These shops have built their reputations by serving a rural and tourism-heavy community where vehicle reliability, especially for trucks and SUVs used for towing and recreation, is paramount. Expertise in 4WD systems, diesel engines, and towing components is a standard expectation. **Competition Level:** Competition is strong among the top-tier independent shops in Rapid City and the specialty diesel shop in Sturgis. There is also competition from the GMC dealership in Rapid City, but the independent shops often compete favorably on personalized service, specialized expertise, and sometimes pricing for complex jobs. **Typical Pricing:** Pricing is competitive with national averages for specialized automotive repair. Labor rates are typically in the $120-$150/hour range for these high-caliber specialists. Diesel and transmission work commands a premium due to the required expertise and equipment. Customers can expect to pay more than at a general mechanic but receive a significantly higher level of technical proficiency for their GMC's complex systems.

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 Keystone regulations and climate