I purchased a couple Stern2 Shaker Motor Kits in October last year, 2019. The instruction sheets indicate; Motor Kit#502-5027-01 and Capacitor Kit#502-7059-00. I stored them for future use. Tonight, I attempted to install one into a 2020 cabinet. I find that the supplied motor-mounting-screws are too short to engage the cabinet's T-nuts. Looks like the newer and greatly improved cabinet build provides a thicker bottom that negates the previous shaker hardware.

I also have Pinball Life Shakers, from middle 2019, installed in early 2019 machines. The PL shakers have longer screws that fully engage and-then-some. I'll quick-fix by swapping the screws from one cab to the other. I'm not certain if the Stern hardware has been updated for future orders.

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