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We Keep Big Trucks Running. 

Big Shop keeps Big Trucks Running so that you can Make More Money


We keep trucks running. That's what we do.

Today's trucking game is a battle. Almost everyone who works at Big Shop Diesel has owned and operated big trucks. So, we get it! You can count on us to get you back on the road fast. 

Call us for guidance 972-590-8565


Get a Quote

All estimates are free and flexible according to materials and scheduling.



These folks are the way forward. Best truck shop experience I have ever had.
— Erin Bennett
Many shops lack common sense and hands on experience when it comes to diagnosing problems … not at Big Shop. We drive over an hour to get their shop. They do quality work at a fair price. We won’t take our Peterbilts anywhere else.
— Ryan Hooten, Ryan's Feed & Trucking
Big Shop makes quick and accurate diagnosis. These guys have done small work and large engine repair work for me. I always feel engaged in the process. I enjoy doing business at the Big Shop.
— Don Rowell, Don Rowell Trucking
These guys do wonderful work. Big Shop has done 3 trucks for us, and all the trucks are doing great and improved in all aspects. What the Big Shop & PDI has done for us is amazing. We have not sent 1 truck to the dealer since the work has been done.
— Daniel Nash



We only work with the best parts available and provide a 1 year guarantee on all labor. We don't compromise quality for time and we give our clients realistic schedules that accommodate their businesses. We strive for honest customer service. Again, you'll only catch us using OEM parts on our jobs at the Big Shop. 

About Marc

Marc Stillwagoner

I started working on big trucks with my dad, as far back as I can remember. We had a shop back home and we called it the Big Shop. That's where I cut my teeth ... working on big trucks & hot rods.  I moved to Texas in the early 2000's and started working for the big guys. I've spent a good bit of time with MHC Kenworth & Rush Peterbilt. Those are great companies and I learned a lot from them. I've been a fleet manager for awhile, and now I own and operate Big Shop Diesel Services. I'd love to earn your business.