Hmm, thanks for your reply. The link worked, but all those parts are for the actual regulator arm that slides horizontally when the motor is activated. The part I need is inside the part that moves vertically up that metal rectangular rod. Maybe I shouldn't have used the word regulator...the plastic piece I need goes inside the metal bracket and holds the window in place as the regulator moves it up (or down) that rod.

Thanks again, any help appreciated!

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1980 300SD Turbo Diesel
"Bailey's. Mmm...creamy. Soft, creamy beige." - Old Gregg