Hi I have bbs rw wheels and i fitted 20mm hubcentric spacers on the rear and 15mm on the from, it's sitting just right except the passenger rear side sticks out more then the drivers rear?

Both 20mm spacers!

Any one have any idea as to why this would be??

 friend has a mk4 golf,he removed the rear beam to change the bushes,now he has this same issue

How much further does the passenger side protrude than the other side?

JRJG