Heres some videos.
[ame="http://www.youtube.com/watch?v=44eE5DVITtk"]Hot Rod Sheave Install - YouTube[/ame]
[ame="http://www.youtube.com/watch?v=hmM-jexWgS8"]How to Grease your Hot Rod Sheave & OD Weights - YouTube[/ame]
[ame="http://www.youtube.com/watch?v=ZOi7TdcYx5c"]Yamaha Rhino With JBS Sheave - YouTube[/ame]
There greaseless overdrive weights but James at JBS said that they are working better with grease so everyone is switching over for the most part. I greased mine and so far has been great, I can't compare to greaseless setup though because I have only ran grease. So basically greased greaseless lol
they are greaseless but perform even better with grease....we have always used the ODs because they dont have roller flop not because they are greaseless...Alba got 7 more hp over any sheave they had ever tested!!!!......we are fine tuning it to the max......JBS SHEAVES!!!!