I just did a spring swap in the rear short arm long arm suspension and the ride height is three inches too high. I need to do a second cut on these springs to dial in the desired ride height.
My lower A-arm is 14.25" long (bolt hole center to bolt hole center). My spring center is 7" out from the inboard A-arm mounting point, so my spring motion ratio is ".2413" Is this what I go by to calculate the drop? If so, then 3 X. 2413 = .73 so I cut about 3/4 inch of spring to drop it 3 inches.
If I don't square it, then I need to cut about 1.5 inches of spring to get my target drop amount.
So.... To square or not to square.... That is the question...