Roadrunner Transmission and Diesel is a drivetrain specialist serving Denver with over 18 years of experience, offering affordable and fair prices for transmission and diesel automotive repairs. The shop is consistently described as honest, ethical, and professional, with a team that strives to earn business through superb customer service and integrity. Customers report that the staff is very direct, knowledgeable, and truly cares about doing good work.
The business is commended for outstanding communication, with owners personally discussing issues and even showing customers the repairs in the shop. They stand by their work, addressing any problems to the customer's satisfaction and taking financial responsibility when necessary, including refunding money for subsequent repairs. Reviews highlight specific instances where thorough diagnosis prevented unnecessary, costly work, saving customers significant expense.
Customers express high trust, stating it is the only shop to call and that they would recommend Roadrunner to any family or friends. The team is noted for being knowledgeable with diesel trucks and delivering quality work, leading customers to return repeatedly and describe themselves as always a happy camper. The business works hard to get vehicles back on the road reliably and at a fair price.
These guys down here are top notch! I've been here several times in 5 years and I'll willing drive the 1.5 hrs it takes me to get there. Thanks guys!
July 2026
They do very good work I dropped my transfer case off for them to rebuild it and I got a call from dim the next day about how it's already done and ready for me to come pick up I'm sure some of that was parts availability but that speaks to them keeping hearts in stock for transfer cases and transmission as well
May 2026
Excellent service and communication!!! Highly recommend. Built a transmission for my 2004 Dodge 2500 Cummins. Also installed a trans temp sensor for me.
