do I have 1/2t or 3/4t?

[Nothinghead]

I was told by the PO that my 79 blazer was a 3/4 ton now, that someone had swapped it all out. I wasn't really concerned about it at the time, but now I am curious to know what I have in there.

What would I be looking for to tell between the two setups?
I have 6 lugs
3 leaves up front, 6 leaves in back
looks to be a Dana 44 in the front
I think a corporate 10 bolt in the rear.


What else would be an indicator?
Here is what I have up front:


and in back: