The YFZ shocks are also about a inch shorter. I'm guessing the YFZ has a different top mount setup.To answer your question you have both YFZ and Raptor A-arms. Both ATV's utilize the same A-arm setup.
If your purchasing shocks get them for the Raptor. If you get YFZ shocks, even though they are for the same A-arms they will be valved differently because of the weight difference in the ATV's.