915 trannie R and P

[speedo]

Is there a way to identify from the exterior whether a trannie has a 7:31 or an 8:31? A way to decode the trannie serial?

[Litle brother]

Hi.

Here’s a start

http://www.gboxweb.com/915specs.html


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[Litle brother]

Hi again.

Here’s another one


http://blueskymotorsports.com/index.php?option=com_content&view=article&id=19&Itemid=6


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[Matt Monson]

Sure, post it and I'll decode it.