I bought USA Alloy shafts and they came with Dana Spicer axle bearings. After thinking I ruined them on the first install, I ran up to Mazzas and bought a Timken axle bearing. Got back home, The bearings were the exact same. Same model # and everything stamped on them.
I've bought Timken before (for bearings) and haven't had a problem... I don't think at least