99% sure they are 4wd, the only difference is the width of the rear/bottom mounting eye, it is wider on 4wd, but normally same rates as 2wd, just the 2wd and 4wd have a different width spacer, maybe the 4wd ones use a high angle spacer each side, and the 2wd don't.
Easiest way is just measure the width and compare with your car.
If they are 4wd and you need 2wd it is easily sorted, as it is the other way around.
tabetha