Rear Axle
Model 9 1/4Ring Gear Diameter, Inch 1/4
Gear Ratios [01] 3.55 or 3.92
Model 60 [02]
Ring Gear Diameter, Inch 9 3/4
Gear Ratios [01] 3.54 or 4.09
Model 70 [02]
Ring Gear Diameter, Inch 10 1/2
Gear Ratios [01] 3.54 or 4.10
Model 80 [02]
Ring Gear Diameter, Inch 11
Gear Ratios [01] 3.54 or 4.10
Footnotes:
[01] -- Stamped on differential housing tag.
[02] -- Dana/Spicer.