Just like to know I got two lower control arms from wreckers, is thier left and right or dose it matter?

there is a left and right and it will be obvious which is which once you compare them to the stockers on your car, one way is make the vertical bushing towards the back of the car and then make sure the sway bar mount is behind the cv/knucle/hub any of that crap.

I could be wrong, but I think with the bushings out and the ball joint off they are the same.

Just wanted to know before I install prothane bushings, Installation instructions say for the large bushing must be installed with the radius at the top side of the control arm. but when you flip the control arm, the large hole where the large bushing goes has a notch out of it. I may not be explaining this very well.

there is a difference, they are mirror image of one an other, do not interchange them

^No I think CTS is right.....you shouldn't run the rolled steel oposite but if the alum is mirror image top and bottom which would make them the same for left and right. just one is "flipped over" if you could imaging that.....but either way...with reference to which way the lower ball joint should be bolted up you should pay attension to the sway bar mounting location and make sure its behind the center line of the ball joint.