i'm doing a disc conversion in my 8.25 rear end and i'm planning on doing the wheel bearings while everything is apart. however I have a question about the bearing options. there seems to be two different timken bearings spec'd for the 8.25 rear end:
timken part #6408 which looks like your usual bearing
and then this one
timken part #TRP1559TV which has this footnote
"Notes: Optional: axle repair package bearing axle repair bearing allows bearing & seal to ride on un-worn axle path"
just wondering what the difference is and what people would recommend.
edit: found a picture of the 2nd bearing, it looks like some sort of all in one bearing?