Thanks all!
I think I've got a line on another Getrag (Not the one that Don has. That one is apparently spoken for.) If that doesn't pan out, I'm very likely going to go with the 4 speed. (That one is pretty much lined up, too.)
How did it happen? I dunno, really. I hammered it pulling out of the parking lot, but I was already rolling and the clutch was already engaged, so there was really no shock loading on the tranny. I noticed as I was getting on 285 that the tranny was very loud. Don was behind me and received a shower of transmission oil. Apparently, whatever broke (I'm thinking the differential carrier) caused the axle and axle seal to pop out of the tranny. We pulled off the road and got the axle plugged back in, but there was *all kinds* of sloppiness in the differential that wasn't there before. I poured a bunch of oil into the tranny, and made it home. Barely.
Don, thankfully, followed me home. Albiet at a safe distance. Not any fun getting showered with oil or (potentially) hot transmission parts. Yes, it was that bad. (The phrase "It's dead, Jim." comes to mind.)
Robbie, I appreciate the offer. If what I'm looking at doesn't work out, I may take you up on it.
Raydar
I'm not the fig plucker,
I'm the fig plucker's son.
But I'll pluck figs,
Till the fig plucker comes.