This reverse gear came from my  1996 vmax protraction XT.  The jack shaft that attaches to this unit broke and I could not find another one, so I rebuilt the gearing without reverse with the intention of finding the jack shaft I needed and put this back into my sled.   That never happened and since I no  longer have these vmaxes I no longer need this part.  

note:  If your sled does not currently have reverse you will need to buy a different jack shaft than the one without reverse.