34774-99 Transmission Cases for Evolution Softail

If you are building a high-performance Evolution Softail, you need a foundation that can handle the power. These Jims transmission cases are engineered to withstand the massive loads of both stock and large-displacement engines. Cast from aerospace-quality 356T6 aluminum and machined to incredibly tight tolerances, this housing is a significant upgrade over factory equipment. It corresponds to OEM number 34774-99 and comes with pre-machined provisions for an electronic speed sensor. For builds not requiring a sensor, a plug and O-ring seal can be sourced separately. Please note that bearings, dowel pins, and mounting studs are not included, allowing you to select the specific hardware that best suits your custom build requirements.