99 Tahoe Rear Axle Assembly - New?

[VRH]

I just had the rear axle detonate in my 300,000 mile 99 Tahoe. Does anyone know of a company that sells a NEW, complete rear axle assembly - with a posi and possibly a disc brake conversion? The stock axle isn't a posi unit and it has drums so it would be nice to just purchase an entire assembly the way I want and swap them out.

Thanks for any input, advice, or guidance!