Mark, when I measured my 53 at disassembly, it measured 55" between the brake
backing plates. I
think this is the dimension you are looking for? I did not take a drum-to-drum
measurement, but I
see that another repsonse to your question has that info. I used an 80's
Camaro Berlinetta rear end
and it was just about the same width as the original rear (well, within a
gnat's eyelash...close
enuf for me).
Wally / Templeton, MA
53 3100 rod project
> I remember seeing this awhile back. I couldn't find it in the archives.
> What is the width of the AD 3100 rear axle (from wheel mounting surface to
> wheel mounting surface)? I know that the Pontiac firebird posi that I'm
> going to use is 55 1/2". This is the same as the Camaro and I've heard that
> they are a bolt-in ;) Some people have told me, there is no such thing as
> a true bolt-in! Here's hoping.
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