I have a spring design manual and it is complicated for leaf springs. Torsion bars are fairly easy and so are coil springs. Of course, a coil spring is a type of torsion bar, just shaped different. There is a local leaf spring company who is very easy to work with. I've had them build custom stuff for me before. But for a car like yours it is probably easiest to just buy some springs off the shelf. Hotchkis should have what you need.

https://benzspring.com/

Last edited by AndyF; 05/24/19 11:26 PM.