Originally Posted by
Cancun Tom
I recently acquired a JRXS-R along with many spares. I have a ball diff for it but also another diff that is either a ¨spool"or one way". I need help on how to identify one from the other. The one I think is a spool has no places for diff balls but does have a place on each side for a diff ring and it can be tightened or lessened like a ball diff. I believe that I do not have a one way but don t know what it looks like. The manual does mention what a spool vs one way does but does not offer any pictures.
It should be obvious if you have a spool or a one-way by just giving the outdrives a twist by hand. The spool will be locked; the outdrives and the pulley are all connected directly as a single unit, and will turn together. The outdrives on a one-way spin freely in one direction, but lock to the pulley in the other direction.
While it may be fun to investigate using a one-way, personally I have never found it useful.