673, that is a lovely truck. Before I got my '51 I had a '67 shorty with a 283 and your trans. It was a rust bucket I bought for not much, but it alwatys worked without a hitch and that 283 was dead quiet, I mean not a sound except for the intake under full throttle. And that transmission is fun to drive in a light truck, I don't care what anyone says. My '51 is getting an '81 250. I have to buy some stuff to make it look older, though.
Only thing I would change on your truck (if it was mine) is the mirrors. I like to be able to see everything easily.
