Need rear end housing

[Sweptline]

The 1957 Chevy truck I picked up has front and rear ends from a late 70's-early 80"s Chevy half ton 4X4. ( I believe).  The prior owner cut the rear end housing and offset the pumpkin (chunk, center section).    With the 350CI engine, trans and married transfer case that I am putting in (I believe from a 1978 Chevy), I need to go back to the stock rear end with the pumpkin in the centerline.  I'm in Northern Alabama and need help locating a housing or complete rear end for sale.  Does anyone know of any. I will to drive to Nashville, Atlanta or where ever within reason to pick up.

Thanks 

[roundhouse]

Shouldn't be too hard to find

I think the pickups and yukon s up to 98 will fit