gear ratio

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Howard Lovelace - 26 Apr 2005 18:06 GMT

I have asked this question before and somehow lost the answer, I am trying
to find out what rear end I have in a 77vette, as I am going to change the
transmission to the 700r4 and must calculate the drive and the driven gears.
Thanks for the help.Howard

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Barking Rats - 26 Apr 2005 21:26 GMT

> I have asked this question before and somehow lost the answer, I am trying
> to find out what rear end I have in a 77vette, as I am going to change the
> transmission to the 700r4 and must calculate the drive and the driven gears.
> Thanks for the help.Howard

Here's what I posted the first go'round:

In article <114t8goi7lbl4e5@corp.supernews.com>,

> Just wondering, I have a 77vette, and I am trying to find out what the gears
> are in the rear end.

Or you could do 1/4 of the work that Bob suggested: jack it up and look
for the stamped in code on the bottom of the differential flange.
According to Chevylay your '77 ought to have one of the following:

OA - 3.08
LR-OD - 3.36
OB - 3.55
OC - 3.70

Here's waving to ya - \||||

Owen
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'67BB & '72BB
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"To know the world intimately is the beginning of caring."
-- Ann Hayman Zwinger

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