Description
Misaligned main transmission case bearings can result in catastrophic internal damage and costly machine work. The JIMS Main Gear Tool (MPN 987) is purpose-built to hold your bearing square and secure during installation, eliminating guesswork and protecting your Big Twin investment. Whether you’re a professional technician or tackling a rebuild in your garage, this tool pays for itself by preventing a single installation mistake.
- Fits: Harley-Davidson Big Twin 2007-2019
- Application: Main transmission case bearing installation
- Type: Precision alignment tool
- Material: High-grade steel construction
- Design: Compact, tool-kit friendly
- Installation: Bolt-on/hand-held use
- Origin: Made in the U.S.A.
- Bearing marring: Prevents during installation
- User level: Professional and DIY mechanics






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