I.D this T/case

[thatK30guy]

You're thinking of the Dana 21.

What we are looking at here is a Dana 24, it was used in Fords before the 205. It has an even higher low range (1.86 or something similar) than 205's. I have heard that these are pretty stout cases, just older.

EDIT: if it were a single speed case, why would it have 2 shift rails?

Also, the guy who made the ad is high on something. Not from a Chevy since it's driver drop, and not worth anywhere near what he's asking.

I was hoping someone would chime in and do some corrections. I wasn't real sure on the Dana number but have seen and heard of the 20 and 21.
Now you mention 24, you're right, I had forgotten someone else correcting me on that one particular case.