I made the SS springs for my 65 Belvedere.

I took 1969 B body springs and swapped the pack onto the shorter 65 main leaf. There were two half leafs on the right and one on the left.
It planted the tires evenly and didn't sag over the 15 years I had the car.

We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon