Welcome!!<br /><br />I don't think so. Some of the Volvo drives had more splines. 19 I think -- anyway, count the splines. I do have some Volvo props if that helps you any.
Mercury mentions Volvo Penta as one of the brands their FloTorq hub kit will fit (look closely at the bottom of this page: http://www.mercurymarine.com/flo-torq ).<br /><br />However, I can't find it in their application chart ( link ) (Edit: I can't find a way to make that link work properly but you'll find the application chart in there somewhere).
I have a Mercury SS High 5 on a VP SX drive using the Flow-Torque II hub kit. Purchased from the local dealer where I got the boat. No problems at all after two seasons.
