On my '63 Fury when changing my 741/2.76 Non-Sure Grip for a 742/3.55 Sure Grip unit I found that I had to shorten my axles 1/16" to fit the SG unit. I figured this would be the time to swap to the flanged axles. I was not able to find any information about this swap. I changed over the swedged hubs, shortened the axles and has been good for ten years far. Our '63 housings drum to drum are 58 1/2" which allows us big tires. The '66 units are 59 1/2" and are a good replacement as Herb said. If you have the funds, or as racers often do, build a unit with custom length axles.
I run 285/70R15 tires on 15x7 wheels with 4 5/8" BS. I ran the same big wheel tire size on my '63 SF.
Nick T.
From: "'BCBOUND' via The 1962 to 1965 Mopar Mail List Clubhouse" <1962to1965mopars@xxxxxxxxxxxxxxxx>
Subject: swapping tapered axles for later flanged axles
Im curious if anyone has successfully installed the later flanged axles into an original 62-64 tapered axle housing?
I just spoke to someone who is sending me the necessary seals, bearings and axles to accomplish this swap in my 63 330 MW car.....I've been wondering about this conversion for over ten years now and finally found someone who sounds like he knows what he is talking about.
I will post pics here for all who are interested when I attempt the swap.