Diamond Edge ~$380. Saw no sense in a more expensive bow after comparing a few of them. Got it at Lucky Shot in Chehalis. Shoot a bunch and see what you like.
Happened to a buddy. I took a die grinder to the inner race, pulled the rollers out (cage was already destroyed), and the pinion fell out. I hacked the rest of the bearing off and ended up reusing the pinion.
...or a link for an outfit in Oregon that sells parts for Toyota 3.4 swaps (looking at a crossover pipe). I didn't bookmark the site, now I can't find it.
I know lots of guys that run directional tires backwards on the front. It helps mainly in mud bogs when you need to back up, but not much of a difference elsewhere.