The Best GMC Repair in Sims, AR

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

#1

Montgomery County Automotive

4.7
(180 reviews)
Verified

A long-standing, family-owned full-service garage known for its deep roots in the community and expertise with American trucks. They are the go-to shop for complex diagnostics and heavy-duty repairs, from classic GM trucks to the latest Duramax-powered HD models. They have a strong reputation for honest assessments and quality workmanship.

123 Main St, Mount Ida, AR 71957 (Approx. 8 miles from Sims)

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
#2

Oauchita Auto & Diesel

4.5
(90 reviews)
Verified

This shop has built a strong reputation for tackling the toughest diesel and transmission jobs in the region. While they service all brands, their technicians have specific training and experience with GM's Duramax and Allison platforms. They are a preferred alternative to the dealership for many local ranchers, construction crews, and tow operators.

456 Hwy 270 W, Mount Ida, AR 71957 (Approx. 7 miles from Sims)

Specialties & Features

Diesel engine service
Transmission repair
4WD and towing system service

Business Information

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

Precision Tune Auto Care of Mount Ida

4.3
(120 reviews)
Verified

As part of a national network with standardized training and access to proprietary diagnostic tools, this shop is well-equipped to handle the complex electronics and engine management systems of modern GMCs. They are a strong choice for EcoTec engine diagnostics, routine maintenance, and electronic issue resolution for Denali models.

789 Hwy 27 N, Mount Ida, AR 71957 (Approx. 9 miles from Sims)

Specialties & Features

EcoTec engine diagnostics
Towing package maintenance
Denali luxury features and electronics

Business Information

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

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

** The GMC repair market in the Sims, Arkansas area is characteristic of a rural, service-driven economy. There are no dedicated GMC-only specialists within the tiny town itself. The market is served by a handful of established, general automotive repair shops located primarily in the county seat of Mount Ida, all within a 10-mile radius. **Average Quality:** The quality is generally high, as these businesses survive on reputation and word-of-mouth in a tight-knit community. Shops tend to be pragmatic and experienced with the rugged use that GMC trucks endure in this region. **Competition Level:** Competition is moderate but professional. The shops listed have carved out their niches—Montgomery County Automotive with longevity and general expertise, Oauchita Auto & Diesel with diesel/transmission focus, and Precision Tune with modern diagnostics. Customers have clear, quality choices without the market being oversaturated. **Typical Pricing:** Pricing is significantly more competitive than dealerships in larger metro areas like Hot Springs or Little Rock. Labor rates are typically 15-30% lower. However, for highly specialized services like in-depth Duramax injector replacement or Allison transmission rebuilds, prices are in line with regional averages due to the required expertise and expensive parts.

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 Sims regulations and climate