The 18 spline output shaft seal has been discontinued by Mitsubishi, but we have located a very high quality aftermarket piece. This seal is practically impossible to replace without removing the transmission, so its a good idea to replace anytime the transmission is removed for service.
These are a very common item to leak on 3000GT and Stealth Getrag transmissions as they are one of the few seals continuously immersed in transmission fluid.
Its also a great time to upgrade your fluid to redline MTL using our driveline fluid package.
We have had to source this seal from various suppliers and it may not have the little felt on it.