are 8 3/4 junk now?

I just got the drums, backing plates and -489 case out of a pick up at Pull-a-part for $94. The drums are excellent... I don't think I even need to turn them. The fluid in the rear looked new, there's no visible wear on the pinion seal... I'd lean toward not even rebuilding it or replacing the bearings.
Unfortunately, it's a 2.92/open dif, just like the other one I have.

I'd LOVE to find a decent street gear ratio in one, but I don't think it's gonna be in the cards if the two -489 cases I have from junk yard trucks both came with 2.92 gears.

-Brad