Please select one of the options below to explore our process and view examples of the rebuilds we have successfully completed so far. Gain insight into our expertise and learn more about how we can meet your specific rebuilding requirements.


On the road or track, we can put you ahead. Since 1965 Korman has built successful BMW engines and cars for street, on-track club events, rallies, and racing. Our customers have won races all over the world — join the winners.

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Our standard gearbox rebuilding includes complete disassembly, thorough cleaning, and close inspection of all parts. The transmission is blueprinted, shimmed, torqued, and pre-loaded precisely to BMW specifications using the correct BMW special tools for each task.

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Our standard rebuild includes complete disassembly, thorough cleaning, close inspection of all parts, replacement of all bearings, seal gaskets, crush sleeves, and lock rings. Includes meticulous attention to correct gear lash, gear contact, precise pre-load of bearings, and exact torque specifications.

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