1940 ford axel size

Hi I have just bought a 1940 deluxe convertible and want to fit a Chevy axel that is 60" wide with 7" or 8" wide steel wheels with 235/70/15 tyres ,what back space do I need thanks for your help Carl

 

You need to ask this on the main board where more will see it. That axle seems pretty wide for a '40 Ford, just off the top of my head. Is that measurement from backing plate to backing plate? Do you know what it came out of?

 

hi lothiandon1940 the axle measurement is drum face to face thanks for your reply and i will put it on the main board