ESPOs, heavy duty, but order stock height.
I ordered 2 inch over and it was too too high.
I have new ones 2 inch over for my 72 Cuda, sitting around, if anyone interested. Cost over $400.
The stock height will look great, and they are firm with no sagging!
Below are stock height ESPO heavy duty rear leafs for a 72 Cuda.
Tires are 275/50-15s MTs