Come on, guys. This thread has been dead for nearly four years and wrapper has no previous posts in it.
You want a definitive answer? Ask Yanmar, and specify what transmission you're talking about.
Yanmar America Corporation
101 International Parkway
Adairsville, GA 30103
Or use the "Questions?" button on YANMAR | Yanmar North America
They're not so hard to contact. And they are, by definition, the sole definitive
source of information on their products.