Help identifying this rear end?

Hello!
Looking at buying a 73’ dart swinger as a donor car for my 69’ GT.

We’re doing a /6 to V8 swap and this seems to be a great candidate.

Can anyone help verify this is an 8.25 rear end? It looks like it to me but I’m doubting my self.

The car is a couple hours away so I’d really appreciate the help!

Thanks!!!