I need a wheel alignment really bad. I have bad inside wear in the rears and I just changes the front struts myself. My question is, do you need to put new tires on before a wheel alignment or do they take the tires off and attach something to the lugs to do it?

 

They do not take the wheels/tires off. An alignment is done with good tires or bad unless you have new ones put on they will align the vehicle after tire installation.