We’re not just about fixing trucks; we’re about building trust.
Located in the heart of Santa Fe Springs, our Gear Shop is more than just a Diesel Repair Shop—it’s the best Diesel Drivetrain Only Shop around. Why? Because we combine unmatched expertise, state-of-the-art technology, and a commitment to delivering the highest level of service to every client who walks through our doors.
CRC opened in 2002, and Mike, the owner, has been a diesel mechanic since 1982. With decades of hands-on experience, he has built a reputation for excellence in the diesel repair industry.
Our team specializes in removal and replacement (R&R) services for clutches, flywheels, transmissions, drive shafts, and differentials. Whether you need a repair, a rebuild, or a rebuilt exchange unit for same-day in-and-out service, we've got you covered.
For added peace of mind, our completely overhauled dyno tested exchange Eaton Roadranger Manual transmissions come with a two-year unlimited mileage warranty, and our differentials include a one-year unlimited mileage warranty. We take pride in delivering first-class workmanship and excellent customer service, ensuring your truck operates at peak performance.
In addition to our core services, we offer specialized dynamometer testing to verify your transmissions performance and readiness for any challenge. From diagnostics to complete overhauls, our skilled technicians tackle every job with precision and care, getting it done right the first time.
We want to keep your truck running strong.
More Than A Truck
We know your truck is more than just a vehicle—it’s your livelihood. That’s why we’re dedicated to providing honest, efficient, and reliable service to keep you on the road and your engine running strong.
—When you choose us, you’re not just choosing a repair shop; you’re choosing Gear Guys who truly care about your haul. Stop by and see why we’re the go-to Diesel Drivetrain Shop in Santa Fe Springs California.
William Briggs
“Mike has a very organized and professional group there at his shop that know transmission rebuilding. Bought a rebuilt Eaton 18918B from Mike, that im completely satisfied with for Sure. I would highly recommend Anyone who is in need of a transmission stop in and see Mike. Also had the drive lines balanced much smoother ride for sure.”
Al Crouch
“These guys were the Best! Mike English (owner) personally rode with me and determined it was my Differential in my 389 Peterbilt. They had me in the shop after lunch and had pulled the rear. They had totally rebuilt mine and installed it & 'out the door' the next afternoon. I'm totally satisfied with the service and will go back anytime”
Let’s get you back in Gear!
If it’s during business hours (M-F 7AM-5PM) we’d love to hear from you—Give us a call for the fastest response. After Hours? No problem. Simply fill out this form, and we’ll make it a priority to call you back first thing the next business day. Your time is valuable, and we’re here to help whenever you need us.