[Joe K]

In examining the chart above, there appear to be two significant and one insignificant changes between spring "C" (7 leaf) and "B" (8 leaf.)

1. Leaf No. 9 is left out in "C"
2. Leaf No. 4 is "thinner" in "C"
3. Leaf Dummy is added in "C"

There may be other differences such as overall individual leaf length or caul radius (pre-tensioning) which are not shown on the chart.

A place to start would be to remove leaf 9. A Dummy is added only so the spring clamps used on B can also be used on C - you can buy a full size leaf of any size on Ebay for relatively small money, and cut it down to make the dummy since it exists only to take up space with no resilience or load carrying input.

That leaf No. 4 would then be the only significant difference. I might imagine enough "relaxation" of the pre-tensioning would make the difference in actual thickness a moot point. A little additional thickness MIGHT be a good thing lest you ride too low with an original 7 leaf spring now nearly 90 years old.

There are prints showing detailed dimensions of each leaf in the Ford Archive. Someone here may have and be willing to share. Of interest particularly No. 4.

This is one of those days I wish the board had an "information repository" for prints recovered from the Ford Archive and made available via the board to everyone.

Joe K