The reason for asking what is wrong with yours is to keep you from rushing around when it could be fixed. A squirrel cage is not a high tech component. "It's broke" tells us nothing. What is wrong with it? Many of us like to fix stuff. If you don't want to fix it, that's fine. If you have determined it is unfixable, then OK.
I agree with Harold. No reason for Chevy to have a different motor or cage just for STD and Deluxe....and many years should work. Just compare the dimensions of cage and it's shaft hole size. Here you go..... CLICK
This is plastic.

This May work for a metal one. Dimensions are very close to the first linked cage.

Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn