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Welcome to Top Gear Performance

THE LEADER IN DIESEL AND GAS, STOCK AND HIGH PERFORMANCE TRANSMISSION BUILDS

Specializing in Diesel and Gas Transmissions

Stand out from the rest with a custom built automatic transmission by Top Gear Performance. A finely tuned performance transmission will keep your ride in top condition. We are the leader in stock and high performance automatic transmission rebuilds for both gas and diesel vehicles, Top Gear Performance will solve any transmission problems you have.  Having a transfer case issues? We rebuild those too, offering heavy duty upgrades and options!  We have extensive knowledge of transmissions and work with model year 2000 and newer automatic makes and models, foreign and domestic.  We have a full in-house transmission and transfer case rebuilding facility.  

We are by appointment only (no walk-ins); give us a call or send us an email to get an estimate or set up an appointment, Monday - Friday 8:30am - 5:00pm. 

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Getting You Back on the Road in No Time

The expert technicians at Top Gear Performance specialize in keeping your gas and diesel cars, trucks, and SUVs at their best. If you notice that your vehicle's transmission is working harder, overheating, shifting poorly, leaking or something else doesn't seem quite right, it's time to bring it to our shop. With the best technicians on staff, you can count on us to get you back on the road in a matter of days.

Ready to Get Started?

When it's time to give your transmission the attention it needs, give us a call to set up an appointment or for an estimate at 920-390-5014.

From Milwaukee to Madison to Prairie du Chien to Eagle River, WI, to the Upper Peninsula, Michigan, and to Chicago, Illinois, we have you covered when it comes to stock and performance transmissions, diesel performance, transfer cases, lift kits, and more!