Quote: He said D60. I've never heard of a 44 in the rear either though. Hard to say if its factory too. Yes its 5.5" bolt pattern.
I did read a Mexican brochure for a late 60s or early-70s Sweptline era truck. It said Dana 44 for the rear axle so I know they used the Dana 44 from the factory then. I still think that one might be a 44 and not a 60.
1970 Dodge d100/eventually going on a 77 D100 frame