Kanzaki transmissions
I just replaced mine last winter, but it was original. Mine went out because of bad motor mounts. They cost alot, but they need to be replaced if they are spongy. They get soft over time. While you have everything apart, check the shaft for straightness, install a dripless seal,cutless bearing and anything else that is needed to make the drivetrain right. mine was $4500 for everything I mentioned, but I didn't do any of the work myself.