Any suggestions on where I can get return springs and hold down hardware (this type uses a pin and a spring clip)?
My Hornet used the !@#$%!! spring plus square retainer (square hole in the backing plate) which I found to be just a terrible design. I converted it to "normal" bendix-type holdowns; after measuring heights (didn't keep records) i rummaged around at a parts store to find spring and post (the nail-like pin) of the right length. I backed the pin/post thing with a #10 washer. Works