Do the differentials have the same gear ratio's for overdrive vs.
non-overdrive cars? If not could someone give me a break down of the
different ratio's and they're proper year models and which ones I should
be looking at. I've got a late model (76) I'm adding a OD to and it may
be an A or a J type. I haven't decided and I've actually planning to use
a early model frame and A type it or replace the tranny mounts.
Anyway, the main question hear is about the differential gears so don't
worry about the tranny part.
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