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rear diff size question

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Old Jun 22, 2008 | 11:08 AM
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St. Jude Donor '08-'09-'10
Default rear diff size question

if the car is new to you, is there a way to tell what diff you have in?
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Old Jun 22, 2008 | 11:09 AM
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The unit should be cast iron and specific to corvette.
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Old Jun 22, 2008 | 11:22 AM
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is there a way to tell if its a 3.06 vs 3.55? and everything in between
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Old Jun 22, 2008 | 12:33 PM
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At the bottom of the diff' rear cover should be code mark.
OK - 3.08
OM - 3.36
OH - 3.55
OJ - 3.70
The other way is to jack up the rear and turn the wheel one turn and see how many turn makes the driveshaft.
Avner
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