Finishing up my Big Bettys Truckstop and need to buy 2 under playfield switches. anyone know the exact one I need or a suitable replacement?

They should activate when the ball hits this yellow mushroom bumper, thus lifting it. WHEN lifted, a pin at the bottom of the bumper (under the playfield) rises.

Not sure but I'm thinking that would then allow a normally open switch to close, thus scoring the hit to the bumper

What switch and mounting mech do I need?

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Wow! Can't thank you enough. I've been sleuthing this part off and on for a year. Now off to find 2 of them ....

Thanks so much ... just sent them an email

That's an easy one to find - the entire assembly is less easily available

http://www.marcospecialties.com/pinball-parts/C-616-3

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You're so correct....I had to order them special. Bought 6

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