Proudly serving Northwest MontanaÂ
and Northern idaho
At Great Northern Truck and Auto LLC, I bring 17 years of hands-on experience as a diesel technician, specializing in the diagnosis, maintenance, and repair of heavy-duty trucks. Over the years, I've built my reputation on honest work, dependable service, and quality repairs that keep vehicles on the road. While my primary focus is heavy trucks, I also provide reliable repair and maintenance services for passenger cars and light duty trucks. Whether it's routine maintenance or complex repairs, my goal is to deliver trustworthy workmanship and exceptional customer service on every job.
What we offer

Heavy Truck Repair
All your heavy truck repair needs from routine fleet maintenance to major repair. We offer competitive prices for PM services, brakes and air systems, steering and suspension, engine, aftertreatment and electrical work as well as trailer maintenance and repair.Â

Passenger car & light duty truck repair
Our services extend to passenger car and truck repair. There is no job too big or too small that we can't keep you on the road.Â

Inspections
- Preventative maintenance inspections
- Annual DOT inspections
- CARB HD-OBD inspectionsÂ
Contact Us
Tony Grob
Owner & Technician
​
tony@greatnortherntruck.com
417-655-1389
PHONE

