no I understand the theory well enough but I can't see the optimum solution is chopping a bit off the free length of the lower (rebound) spring.
Gary
Gary,
I rebuilt the suspension without the rebound springs, set car on level surface and measured the gap they had to fit into. Cut them to length then it's not too difficult to fit them. One of mine was a bit tight but I left it.
With the car is set up without the rebound springs you can see how much it's going to raise the ride height by before you chop them.
If you have a press you can check the rate of the springs using an old set of bathroom scales. The parts books I've seen just have the part no of the springs, no info of rate.
Cheers
John
Edit, I just use one of those thin cut off discs in an angle grinder. I made the cut at 90 deg to the spring's axis.