The answer to your second question is on the first page of this thread. I don't know the answer to your second. I could have measured some axles directly, but they got thrown away earlier this year(severely rusted from a flooded outbuilding).
i just did the explorer swap.did'nt care for the offset so i cut the long side off and got another short axle for it.worked out nice now all i need is wheels! it came from a 95 model with 3.73 ls and disk brakes.i took
A fox 8.8 rear end is the same width as a 67 Mustang rear end. We are developing a bolt-in rear sub-frame that will let you bolt-in the 8.8 from a fox.
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My Versailles rear end for my 65 fastback, D-Locker 3:70 moser 31spline axles.....I bought my complete 3rd member from www.justrearends.com guy was easy to work with!!!