hey all this is related to this thread i posted before: http://forums.justcommodores.com.au...93-1997/65722-car-handling-not-goin-well.html i took her to a kik ass tyre joint, and the guy looked at the back tyres, and said there are 'bubbles' in the tyre, or pretty much they r not perfectly round, which causes the rocking, the front tyres are fine, they r pretty much brand new. So all i'm gonna do for now, is buy 2 tyres for the rear at k-mart tyre and auto, and get the free ballance and allignment done too thanx for ur help before hand btw