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Rich,
I am glad to
see that you know the right way to measure a leaf springs. For those of
you who are unsure click here to see how it is
done. While
any increase in the loaded arch of the spring does shorten the length of
the spring some what, we find that the shackle will remain at an
acceptable angle as long as the spring is held to a 3-inch or less
increase of loaded arch. And the wheel will remain centered in the wheel
well opening also. Because
of stability concerns and the need to alter other parts of the vehicle, we
limit the amount of lift we build into leaf springs to 3-inches and
2-inches with coil springs. And
because of reduced suspension travel and steering concerns we limit the
amount of drop we build into springs to the same 3-inch and 2-inch limits.
- Mike
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