Here is a sure way to find out... Tale a piece of cardboard and cut it to fit into the rear of your wheel... Then take a black magic marker and trace your wheel bolt pattern onto the cardboard. Now place your wheel bolt pattern onto the the lesabre wheel. If the wheel bolt pattern you made matches up with the wheel in question... Well then you are good to go!!! The only thing you'll need to look at are the tire sizes... Sometimes General Motors sneaks in a 16inch size tire on their cars... And other times the same car can have 15inch tires as well. I have seen this before. But as long as the wheel bolt pattern is the same they will fit. Just make sure to note tire sizes cause there could be a small problem there... Like say for instance if the tires off your GP are 15 inch and the Lesabre has 16 inch tires well then the rims may have a different dish to them and then may not work. Even if they are the same wheel bolt pattern you must note tire sizes. And sometimes again they will work with no problems as well. All you can do is check the wheel bolt pattern first and if that is the same then try one wheel off your GP onto the Lesabre's front end and turn the wheels each way and check for any place where they may hit or rub. It is a lot of work I know but in the end you'll save yourself time cause you'll know what hits and what fits. Hope this helps you.