Expert Transmission Service & Repair in Lee’s Summit
When your transmission isn’t shifting like it should, you need a shop you can trust — one that truly understands transmissions from the inside out. At Gus’s Gears, we’ve built our reputation on honest diagnostics and superior service. With over 50+ years of hands-on transmission experience and
ASE and ATRA-certified technicians, we are well-known for our reliable transmission repair, rebuild, and replacement services for all makes and models. Our goal is simple: get your vehicle back on the road and driving the way it should — safely, smoothly, and without stress.
Transmission Services We Offer
We service automatic, manual, and CVT transmissions on all vehicle makes and models.
Transmission Diagnostics
If your transmission is slipping, making noise, or shifting hard, we’ll perform advanced diagnostics to pinpoint the problem. We evaluate mechanical condition, fluid condition, electronic controls, and driveline performance to determine the best solution.
Transmission Repair
When a full rebuild isn’t necessary, we’ll repair only what’s needed. This may include solenoids, sensors, seals, valves, torque converters, or internal components — always targeted, always honest. With over 50+ years of experience, our mechanics are experts at repairing transmissions, and we have the certifications to prove it.
Transmission Rebuilds (In-House)
Unlike many shops, we rebuild transmissions in-house. This allows us to ensure quality, use premium components, and tailor the repair to your vehicle’s exact needs. No outsourcing. No unknown workmanship. Just skilled, experienced, hands-on craftsmanship from ASE-certified technicians. It's a joke around the shop that we can tear down and put back together a transmission with our eyes closed, we are just that good.
Transmission Replacement
If the transmission is beyond repair and a rebuild isn't an option, we provide complete replacement options that match your vehicle and budget — and we’ll walk you through each choice so you can feel confident in your investment. To give you even more confidence in your new transmission, all our transmission work comes with a nationwide warranty.
Transmission Flushing and Fluid Service
Transmission fluid keeps your system cool, lubricated, and shifting smoothly. Over time, that fluid breaks down and collects debris, which can cause slipping, hard shifts, or premature wear. Whether you need a complete fluid exchange or a simple drain and refill, we use the manufacturer-recommended fluid and service procedures to protect your transmission and extend its life.
Wondering if you've waited too long for a fluid change? Bring your car in, and we can run a diagnostic to determine what is best for your vehicle.
Why Choose Gus’s Gears for Transmission Service?
We have more experience and knowledge than any other transmission shop in the area.
50+ years of transmission experience
ASE & ATRA-certified technicians
Honest assessments and clear explanations
In-house rebuilds for superior quality control
Nationwide transmission warranty
Local, family-owned, and community-trusted
What Our Customers Say About Our Transmission Work
Transmission repairs can be expensive, so you should use shop you can trust. Here’s what real customers have experienced when trusting their vehicles to our team.
“Gus’s Gears replaced the transmission in my Odyssey and I could not be more impressed. They handled everything with my warranty company and kept me updated every step of the way. Honest communication and excellent service—something you don’t see anymore.”
Elisabeth T.
5-Star Google Review
Fantastic service and super friendly. Took my 4Runner in for what I thought was transmission issues and they found the real issue that ended up costing me thousands less! Can’t speak highly enough about them.
Scott T.
5-Star Google Review
Gus’s Gears owned and operated by Gus is fantastic! I have sent many friends and family to him for years. He can do anything from regular maintenance to complex repair. He has replaced a transmission on an older Mustang, a motor on an older Dodge, brakes, pads, rotors, oil changes and so much more. He is the only mechanic I go to. I’ve even had cars towed to his shop because I only trust Gus!!!
Mary R.
5-Star Google Review
Backed by a Nationwide Warranty
Every transmission rebuilt or replaced at Gus’s Gears is covered by a nationwide ATRA warranty, honored by participating transmission shops across the U.S.
That means wherever the road takes you, you’re protected.
Signs Your Transmission May Need Service
If you notice any of the following, schedule an inspection as soon as possible:
- Slipping when accelerating
- Delayed or harsh shifting
- Grinding or humming noises
- Burning smell or leaking transmission fluid
- Dashboard transmission or check engine light
- Jerking, surging, or unusual driving feel
Don’t wait — early diagnosis can prevent costly repairs.
Transmission FAQ's
Do I really need a transmission flush?
Sometimes. If your fluid is simply worn, discolored, or low, a fluid service can help extend the life of your transmission. However, if your transmission is already slipping or has internal damage, flushing it can make the issue worse. This is why we always perform a diagnostic evaluation first—we only recommend a flush if it’s beneficial for your vehicle.
How often should I change my transmission fluid?
It depends on your vehicle and driving habits. Many manufacturers recommend a transmission fluid service every 30,000–60,000 miles. If you tow, drive in heavy traffic, or have a work vehicle, servicing your transmission more frequently can prevent expensive repairs down the road.
What are signs my transmission needs service?
Watch for:
- Delayed or hard shifting
- Slipping between gears
- Burning smell
- Red or brown leaks under your vehicle
- High RPM without acceleration
If you notice any of these signs, schedule a courtesy inspection—we’ll evaluate before recommending any repairs.
Is it better to repair or replace a transmission?
Every situation is different. Sometimes a failing sensor or module is the only issue. Other times, a transmission rebuild or replacement is the most reliable and cost-effective solution. We’ll walk you through your options, explain what’s worth the investment, and help you decide what makes the most sense for you and your vehicle.
Do you offer rebuilt and remanufactured transmissions?
Yes, and we do all rebuilds in-house. We can also install remanufactured units when appropriate. Every build is backed by a nationwide ATRA warranty, so you’re covered wherever the road takes you.
Can I drive my car if the transmission is slipping?
We strongly advise against it. Driving with slipping gears can cause severe internal damage and increase repair costs. If your vehicle is unsafe to drive, we offer free towing with approved major repairs (within 25 miles).
Need Your Transmission Serviced?
Book your transmission diagnostic today, and let our team help you get your truck or car back on the road and running smoothly.