Professional Auto Mechanics in St. Louis, MO
At AAA Commercial Transmission, we specialize in providing top-tier transmission services and general auto repair. Our certified auto mechanics in St. Louis, MO, bring over 30 years of hands-on experience to every vehicle we service. Whether you're dealing with a slipping transmission, strange noises, or a complete breakdown, we have the tools, knowledge, and dedication to get your vehicle running smoothly again. Call us today at (314) 647-1038!

Why Choose Our Vehicle Mechanics?
Our team of expert auto mechanics is trained to handle all makes and models, both foreign and domestic. We don’t just fix cars—we build trust with every repair. Here’s what makes us the go-to choice for drivers in St. Louis, MO:
- Over 30 years of experience in transmission diagnostics and repair
- One-year warranty on all services for added peace of mind
- Free towing, road tests, and estimates—no hidden fees
- Affordable transmission overhauls and rebuilds
- Same-day service available for most repairs
- No upselling or pressure tactics—just honest advice
- Customer-first approach with a focus on long-term reliability
We use state-of-the-art diagnostic tools to pinpoint issues quickly and accurately. Whether it’s a minor adjustment or a major rebuild, we’ll walk you through the process and explain your options clearly.

Comprehensive Auto Repair Services
While we specialize in transmissions, our auto mechanics are also skilled in a wide range of vehicle repair services, including:
- Transmission rebuilds and replacements
- Clutch repair and replacement
- Differential and transfer case service
- Transmission fluid flushes
- Check engine light diagnostics
- General drivetrain repairs
- Preventative maintenance
We believe in doing the job right the first time. That’s why we use only high-quality parts and follow industry best practices for every repair.
What Our Customers Say in St. Louis, MO
Our reputation is built on trust, transparency, and top-quality service. If you want to discover what previous customers have said about our work and our staff, check out our testimonials. We want you to feel peace of mind when you choose our auto mechanics for your transmission needs.
Frequently Asked Questions (FAQ)
At AAA Commercial Transmission, we know that choosing the right auto mechanics or vehicle mechanics can raise a lot of questions. Whether you're dealing with a transmission issue or just want to understand your options, we’re here to help. Below are answers to some of the most common questions we receive from our customers.
1. What’s the difference between auto mechanics and vehicle mechanics?
Both terms are often used interchangeably. However, auto mechanics typically focus on cars and light trucks, while vehicle mechanics may also work on larger commercial vehicles. At AAA Commercial Transmission, our team is trained to handle both.
2. How do I know if my transmission needs repair?
Common signs include slipping gears, delayed shifting, fluid leaks, or strange noises when driving. If you notice any of these, bring your vehicle in for a diagnostic.
3. Do you offer free estimates and diagnostics?
Yes! Our auto mechanics provide free estimates, road tests, and diagnostics so you can make informed decisions without any pressure.
4. How long does a transmission repair usually take?
Most repairs can be completed the same day, depending on the issue. For more complex rebuilds, we’ll give you a clear timeline upfront.
5. Is there a warranty on your work?
Absolutely. We stand behind our repairs with a one-year warranty on all services for your peace of mind.
6. Do you work on both domestic and foreign vehicles?
Yes, our experienced vehicle mechanics are equipped to service all makes and models, including both domestic and foreign vehicles.

Contact Us Today!
Don’t let transmission problems slow you down. We understand how stressful car troubles can be. Call AAA Commercial Transmission at (844) 616-7662 or visit us at our auto shop. Let our expert auto mechanics St. Louis, MO, restore your vehicle’s performance with fast, affordable, and reliable service. Your car deserves the best, so get back on the road with confidence with us today!