About Muncie4Speed.com

Muncie4Speed.com aims to become a comprehensive technical reference for Muncie 4-speed transmissions, including M20, M21, and M22 reference data, a casting-number database, date-code and assembly-stamp decoding, identification tools, part numbers, application information, technical articles, calculators, and original diagrams.

Project status

The application foundation is complete. The Muncie technical database and content are being prepared separately as structured research packages and have not yet been imported. No Muncie technical facts are hard-coded into the application logic.

Principles