3 SPEED/VARIABLE SPEED WIPER MOTOR INSTALL QUESTION (NOT AN ELECTRICAL QUESTION)

Hi Folks

I am installing a 3 speed wiper motor into my '71 Demon (used to have a 2 speed). My question is........Are there metal bushings that line the 3 rubber mounting bushings like there are on a 2 speed wiper motor. This motor that I have do not have the Metal bushings, just the rubber.....maybe MIA?

Thanks FABO