I can't hear it
I've never had one whine on OE gears. Aftermarket gears will whine.
Well I assume they are OE gears, but this one did have extras, HD rear springs, rear seats, fuel gauge, horn, lights. Not sure if all came like that or it's extras.
May try and free up the shifter on my buddies 93 transaxle and fix it up and swap it in.
Some drive belts will whine.
Was your wife or a girlfriend on the cart with you I find they tend to whine a lot