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Old Feb 28, 2010 | 02:36 PM
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Gear Ratio

how do you till what gear ratio is in your differential or what gear ratio did a 1990 bronco come with the tag on the diff has these codes s837a 55889l27 but i donno what that means
 
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Old Feb 28, 2010 | 04:46 PM
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Looks like a Sterling Axle Plant 3.55 nine inch assembled
November 27th 1989.
 
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Old Feb 28, 2010 | 05:59 PM
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Last year for the 9 was '86, warn't it?

My sometimes inaccurate decoder ring shows:

Bronco '89-'95, F150 '90-'96.

3.55 ratio, limited slip, 8.8 ring gear.
 
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