About G3 Transmission & Auto
At G3 Transmission & Auto, we believe an auto repair shop should earn your trust before it earns your business.
We’re a locally owned automotive repair and transmission shop in Smithville, Missouri that is serving our community and drivers throughout the Kansas City Northland. Our goal is simple: diagnose vehicles correctly, communicate clearly, and treat customers like friends and family.
More Than a Transmission Shop
Transmission work is a major part of who we are, but G3 has grown into a full-service automotive repair shop.
Our team handles:
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Transmission diagnostics, repair, and rebuilding
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General automotive repair
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Diesel repair
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Engine and drivability diagnostics
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Brake repair
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Suspension and steering
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Cooling systems
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Maintenance and fluid services
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Electrical and warning-light diagnostics
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That combination allows us to look at the entire vehicle instead of assuming every symptom is caused by one component.
Local. Independent. Invested in Smithville.
We're proud to be part of the Smithville community and we’re building G3 for the long term.
Whether you need routine automotive repair or you're dealing with a complicated transmission or diesel problem, we want to be the shop you feel comfortable calling first.
G3 Transmission & Auto
Smithville, Missouri
816-866-0912
Diagnosis Comes First
One of the most expensive mistakes in automotive repair is replacing parts before properly identifying the problem.
We believe in testing first.
Whether you have a transmission concern, check-engine light, diesel problem, vibration, strange noise, or vehicle that simply isn’t driving correctly, our job is to figure out why before recommending a repair.
A Shop Built Around the Customer
Car problems are stressful enough without wondering whether you're being sold something you don't need.
At G3, we want you to understand:
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What we found
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Why it happened
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What needs to be repaired
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What can wait
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What your options are
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What the repair is expected to accomplish
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Sometimes that means recommending a repair. Sometimes it means telling a customer not to spend money on something.
That approach is how we want G3 to be known.