I got these numbers for two rear diffs a guy has for sale.
First one is questionable.
Diff#1

41-10
4.10

Width backingplate to backingplate - 57''
width rim center to rim center - 67.25''
rerches c-c - 44''

Diff#2
DITA-UA
60-198-27
3.73
Width bp to bp - 54.5''
width rc to rc - 63.25''
perches c to c - 40.5''

Anyone know what these might be from. Was told 70's Ford F250's. They are 8 lug, and the Diff#2 looks right for size. (I measured mine ouside in the dark)

Thanks

 

D1TA-UA = Dana 60 / 3.73-1 / LIMITED SLIP / Fits: 1968/72 F250.

The other rear end if a Dana 60 (or 70) is most likely for a certain 1973/79 F250 (60) or an F350 (70), because it's wider.

There may be a ID tag on this rear end...look on the axle housing..just adjacent to the lower left side of the inspection cover for a bolted on (2 bolts) 2" x 1/2" Dana ID tag.

The code will be 7 digits, like: 603010-1. Once decoded, I can tell you exactly what it is, and what it's for.