I think the spring is the least of that cars problems!

Well, actually, the forces caused by that axle wanting to right itself might put some very strange twists on the springs.
The sad part is that some yokel built this car for the sole purpose of unloading it onto some unsuspecting and inexperienced hopeful rodder who will actually try shoving a big block in it and driving it. To me it verges on criminal..............no different from those "restoration shops" that tape over rust holes in frames and undercoat them so no one will notice.
Don
A belated Happy 78th Birthday Roger Spears
Belated Happy Birthday