[Destroyer]

Originally Posted by Blue_Runner

My thinking is, if I'm gonna replace two hubs I might as well replace all 4 at the same time.

Great info - thanks guys.

p.s. Destroyer I believe my bearing buddies popped off cause 1) I over packed the grease and 2) there was grease on the edges when I put them in. Still, I'm not a huge fan of buddies....but they are certainly better than nothing at all.

Hmmmm... but there's a greese/pressure relief hole in the buddies... it's impossible to overpack/overpressurize them because the greese will just ooze out of the hole. In fact, that's why they make the bearing bra for them, (so the ooze is captured by the bra and doesn't cover your wheels.)
Now, if your spindles are damaged, that's another story entirely and it's very possible they came off because of that. I agree with you that if you're gonna replace two it's only smart to do all four... and like everyone else said, I'm of the opinion you'll find you have two different size bearings on each wheel. Take off a hub, remove the bearings and take down the numbers... then do like Reelapeelin said and go buy some quality Timken (American) or German (FAG) or Swedish (SKF) made bearings. (Or take the bearings to your local bearing house and let them size them up for you). Remember that your entire boat, trailer and days outing are riding on these 8 little bearings spinning around at hundreds of times a minute. You want nothing but the best down there...