On my truck, 52 1/2 ton the horn button spring and cup fit quite close with just a little movement. About 1/8th inch. Works just fine. All you are doing is making a ground to complete the circuit. The trick is to have the round spring "bucket" flat when the nut is tight. The "Chevrolet" cover just held in place by the "bucket". If you want you can test it with out the horn button and see if it works. Then pull the + cable off the battery and put the cover on. Hook up the battery and you are good to go. Of course you can leave the battery hooked up and enjoy the sound as you try to put the cover on. That is fun to.
