I just lowered my car on 20's. My question is should I put the spacers first before I do the 4 wheel alignment or should I do the 4 wheel alignment and then put spacers that way i Know how much spacers do I have to put on...Isn't that gonna change my alignment again after I put the spacers on???.

Any suggestions would help..thanks

 

Do the alignment after the spacers of course

 

"should I do the 4 wheel alignment and then put spacers that way i Know how much spacers do I have to put on "

-that's a good point, and makes sense too. the alignment will straighten out your wheel and reduce the negative camber/tuckness, then go from there. Spacer may not even be necessary after you see what an improvement the alignment made.