Quoted from vid1900:
UPDATING OLD SS FLIPPERS:
Ok, so you've got an old game like Disco Fever and you want to update to the modern style flipper mechs. This will REALLY tighten up the feel of the game and eliminate that 'bounce back' feel.
First label your wires so you know where your 28v and ground is.
Just an FYI. I bought these to upgrade my 1978 Williams World Cup flippers.
Won't work. There's no room. No matter how you spin them there's just to many lights and switches in the way.