So I just noticed this yesterday when I changed my balljoint. Passenger side has a hub designed for an ABS system. My car does not have ABS. I know the axles for ABS and non ABS are a bit different at the ends. My question is, will my axle NON ABS still be fine to use with the ABS hub assembly? I guess the title should be something different but I dont know how to change it.

It doesn't matter, they'll all fit and work together.

After all, you've been riding on it like this for who knows how long, right?

Can you see a visible difference between your driver and passenger knuckles? FWIW, they all have the same part number, ABS or non.

Cant see a difference except the one with ABS has the sensor. Thanks for the help.