Axle identification - need help!

[MagnuM4WD]

Hi! Please, can anyone tell me if in the pictures is a GM 12 bolts and what type of locking is that one? The rear axles is from a '73 Chevrolet Blazer and '80 Chevrolet Blazer.
Thank you for your answers! Mihai.


Axe

 

[chulisohombre]

pics are kinda smallish to see exactly what it is.looks to be a 12 bolt axle with a limited slip of some sort.

 

[jt512]

They both appear to be 12 bolts, I am not sure what kind of diff is in the first 2 pictures, the second 2 pictures appears to be a stock open differential. Hope this helps

FYI-for CK5ers- just click on the pics to blow them up so see them better.

 

[sweetk30]

pics small but for sure #2 = gov-loc aka gov boom

 

[MagnuM4WD]

If you click on the pictures, you'll see bigger!
So, that locker is a gov-lock... I understand is not so good for this job...

Thank you for your answers!