e9 diffs.

[Simufly]

anybody know how to decode the markings on e3/e9 diffs. I have a couple and would like to know the ratios.

 

[Honolulu]

There should be two numbers stamped on the diff case, indicating the number of teeth on the pinion and crown gear. Their quotient is the diff ratio. 3.64 is common but there are a couple others.

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