You mentioned in another thread you plan to eventually put ifs on your truck. If that is the case you should consider finding a rear end with matching wheel bolt pattern rather than putting money into a 6-bolt rear end.

"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.