Charles - I "discovered" EvapoRust about 6 months ago; amazing stuff. I bought some PVC pipe and soaked the leaf springs 1/2 at a time, careful to adjust the liquid level so that the "line" fell where the axle/spring plate would hide any differences from one end to the other. BTW, my 9/65 San Jose car had two of the white "check marks" on each backing plate (like an 11 in appearance).