Gm carrier id help

[garzas23]

I have this Carrier that looks to be out of a stock rear end. Im about to buy it but I just dont know how to get any specs on it to confirm it is a posi, limited slip, or even fit my 8.5" 10 bolt and axels. Im told it is a limited slip for an 8.5". Can anyone here tell me what to look for? and would the enternal rust be an issue?

It has the # A15H and looks like 540

 

[bucket]

Not sure about the #'s, but a picture would help, if that's possible.

 

[garzas23]

Sorry lol. I have been trying to figure out how to resize the pictures it was saying the files were to big. Here are 3 pics.

 

[crazy4offroad]

Need to see it from the other angle, to tell if it's a G80, open diff, eaton, etc

 

[bucket]

That doesn't look like your average 8.5 carrier.

 

[garzas23]

Ok i will get some more pics soon.