Help how 2 tell from dana 60 and dana 44

[onesmokinduramax]

Ok im going to look at a axel tomro all i know its from a 3/4 ton chevy truck how can i tell if its a dana 60? can and one post a few pic im going in the moring to look at it so i need to know for sure if its a 60 and not a 44. its still on the truck and i would hate to spend the money and end up with just a 44. can some one help me out here.

Thanks