just done my rear hub bearings. I used kinetic bearings on eBay.
as far as i know, its SRAM only for the front. they’re a weird size. As for the rear – the bearing numbers are wrong. don’t order 63803, they won’t fit. you need 17287. x3 and 6903 x1
there are better bearings available – but i didn’t want to pay that much for one bearing.
http://www.wychbearings.co.uk/17287-2RS-Enduro.html?gclid=CP-3y4egi8wCFfEV0wodz9kETA
on pulling mine apart, it was only the outer drive side bearing that was knackered. the other were all fine.
if you’re pulling apart, you might want to get a set of Hope Pro 3 pawls and springs, to upgrade the free hub. fit and work perfectly