Close-up of ring gear with stamped part numbers including F3-410…
Rear D'shaft & DiffView all 11
The rebuilt chunk arrived today.
The diff is stamped: YDGF9-28-AG 04012010 BF031
The ring gear is: L7, circled K, F9-410-9X37 (Ford 9 inch, 4.10 ratio = 9 pinion teeth x 37 ring teeth)
It might have 672 hand-ground at the far L.
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