Hi again

Just went to a member of the veteran car club and measured the rear axle on his 31 coupe.
It measured 49 ¼ inch C/L to C/L of the spring perches.
This will give me a problem because my rear axle housing is only 51 ¼ inches.
I am using Wilson Welding finned aluminium backing plates.
Distance between the inside of the backing plates are 47 ¾ inches.
This makes the maximum distance C/L to C/L of the spring hangers to be about 46 inches.
My stock 7 leaf Model A spring is 40 ¾ inch C/L to C/L of the spring eyes at rest
If I follow Dons advice of adding 5 inches to that I end up at about 46 inches witch is the maximum distance possible between the spring hangers
This turns out to be more luck than engineering.
I will mount my spring hangers 46 inches apart.

Vegard