Don't give up yet, it is possible to replace the band, they are real cheap too. You don't have to even buy the so called "slip band".
I would buy the governor and solenoid kit also, which isn't so cheap. Buy 2 bands in case you ruin the first.
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You can carefully smash the tab down on one side, maybe squeeze it with a press, or grind it down. cut the old one with snips And fish the new one in. I've done it, it works.

search YouTube to get a better idea. There is a dimension, I forget what it is, 7/16 or 1/2 that fits between the case.

I also like to ad a drain plug.