Shimano hub question
 

I had an earlier post looking for cones and bearings for a Shimano Xt hub front. I found those and good to go.
But here is my new question. My rear hubs are XT FH-M756A 36h Rear 6-bolt Disc Hubs. I called Shimano this AM and they no longer carry parts for this hub. I bought these hubs just over 1 year ago. I cannot even find the Tech Doc. I can find the info for the same hub less the"A". But I cannot figure out what the difference is and Shimano will not tell me.
So anyone here able to help me out? I would like to have some cones and bearing for these hubs.
Thanks!

Exploded Diagrams.

756-A: https://www.paul-lange.de/support/sh...756-A-3295.pdf
756: https://www.paul-lange.de/support/sh...M756-2099C.pdf

They're from: https://www.paul-lange.de/service/Su...ngen/index.php

cobba, Thanks for the info.I will start searching for parts.

distributors to bike shops stock spares to repair stuff, Shimano has discontinued , because shops get the repair jobs.