Operation CHARM: Car repair manuals for everyone.

Differential Assembly: Application and ID

Model 8 3/8
Ring Gear Diameter, Inch 8 1/4
Gear Ratios [01] 3.21, 3.55 or 3.90

Model 9 1/4
Ring Gear Diameter, Inch 9 1/4
Gear Ratios [01] 3.21, 3.55 or 3.90

Model 60 [02]
Ring Gear Diameter, Inch 9 3/4
Gear Ratios [01] 4.09

Footnotes:

[01] -- Stamped on differential housing tag.
[02] -- Dana/Spicer.