Duster 360 *Snuffy* New exhaust and 8 3/4 !!
I'm 52 years old, have worked as a Chrysler tech since I got out of high school and I've been racing just as long. I've never seen an 8.75 or a Dana axle (which is the same BTW) ever have a bearing come off the shaft. Even if you didn't weaken it it's just not necessary to do. It's not going anywhere.
But now if it does break Moser won't warranty it nor would Strange, Mark Williams, or any other axle manufacturer. Tell your friends to stop welding their axles too. Because friends don't let friends weld their axles. :)