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76 rear gear ratio help

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Old Mar 19, 2007 | 12:33 PM
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Default 76 rear gear ratio help

Hi guys, searched for the answer but nothing came up.......Im getting ready to change the rear end fluid on my dad's 76 and figured while i'm under there and with the cover off if i could figure out what ratio he has. first are there any trim tags on the stock rears that would say which ratio it is? or is there any other way to figure it out?

what were the ratio's offered for a 76 L48 with a 4 speed ?????


thanks alot!
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Old Mar 19, 2007 | 01:28 PM
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It is stamped into the bottom of the case where the cover and case meet. Look for
OA 3.08
OD 3.36
LR 3.36
Ob 3.55
OC 3.70
These ar for 76-77
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Old Mar 19, 2007 | 03:15 PM
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My 75 came with an L48 and Muncie 4 speed as 3:36. Might be the same as yours.

You could mark the wheel with chalk and mark the driveshaft then rotate the wheel 1 revolution while counting the revolutions of the driveshaft.

Last edited by TopGunn; Mar 19, 2007 at 03:17 PM.
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Old Mar 19, 2007 | 05:50 PM
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coolerthanethan
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Originally Posted by Artsvette73
It is stamped into the bottom of the case where the cover and case meet. Look for
OA 3.08
OD 3.36
LR 3.36
Ob 3.55
OC 3.70
These ar for 76-77
thanks alot!!!!!! just what i was looking for.
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