What to do? Cracked 12 bolt.

[intofx]

Hey guys,

I'm a newbie and learning a lot. I bought a 69 camaro a couple of months ago. One of the first issues I had was a leaky passenger side axle tube. I was told it was cracked and I had it welded at that time. It is currently leaking again and is at the shop (that fixed it before) to determine the problem. That said, if he says the diff is damaged beyond repair (is that possible) what should I do - Look for a used 12 bolt? Look at a new rear unit from an aftermarket company? Get a second opinion?

I'd prefer not to break the bank but I HATE spending a little bit of cash for several "fixes" to put a bandaid on the problem only to spend a bunch of money chasing the problem.

On a second and semi related note - I'm looking to switch the rear gears out anyway so how would that factor in my decision above?

TIA,
Matt