73' B3 340 Duster pro touring build

how about a measurement as the car sits......just curious

if the (installed) spring measures 8" at ride height....that would be a 20% collapse.....the pre-load measurement does not enter into the equation.

according to QA1....in this example, you should have a softer spring....the spring ideally should collapse 25-30%

Ok got it now....I jacked the car back up to work on the exhaust but I can get that measurement. I believe I have 350 lb springs on it now.