Rear leveler jacks on Ford F53 Chassis

I agree the holes weren't punched specifically for the jacks. When you talked to Equalizer did you ask about ordering the brackets, or a local dealer who could?

I had to make brackets to go around a floor support welded to the frame when I installed the rear mounts on mine. With the cylinders, tank, and pump you'll probably have to make quite a few mounts. Look for convenient holes and keep them simple.