Water coming out of my rearend..

[Bazooka]

No not THAT rearend..

The shop was cutting the stock brackets off my rearend in my 63 chevy pickup with a torch. The yoke was pointing down at the ground. Water began to leak out of the yoke and it was a pretty good sized puddle...

He didnt crack open the rearend to look inside. We were wondering what this could be and if any of you have experienced this before? We were thinking maybe water over the years got inside the rearend or something..

I just thought Id ask if this means I get to buy a new rearend or what..

Thanks guys

P.S. I live in a apartment so I cant do my own work. Just letting you know before you give me a hard time