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Originally posted by Jeepasaurus:
Does anyone know the gear ratio on a AMC20 rear axle, stock CJ5 1981

there is two possibilites, you either have 2.73 or 3.73's. more than likely you have 3.73.

steve



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westcoast rockhuggers offroad club
 

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jeepasaurus,

i also forgot to add that if you have the dana 30(early) up front, it has 3.73 stock. so if that is whats up front, the amc 20 is definely 3.73. and yes the amc 20 had 2.73's.
like lars said, it was the 80's, real crappy ring and pinion ratio's. i have pulled this gear set out of a amc 20 once.

steve



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westcoast rockhuggers offroad club
 
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