I was mainly looking for just the right rear cone but may just get all four to replace at once and the ball bearings too..
An way, at SJS they show the part # I'm looking for (Y-3AE 03100) and call it
"Shimano Deore XT FH-M760 Rear Right Cone" :
http://www.sjscycles.co.uk/shimano-d...310-prod17280/
At the Wheels Manufacturing website they show a cone for a Shimano XT M760 (part# CN-R098) :
http://wheelsmfg.com/products/all-co...r098-10mm.html
So it seems that maybe my wheel (WH-R500), and the XT-760 hubs use the same cones...