do in need aligning if i replace rear tires?

[omodos]

yup negative camber has made em bald on the inner edge so need to change em and wonderingif alignment is a must?

[primetime]

Well, if you don't want to keep replacing the tires way sooner then they should be...then yeah you need an alignment done....but thats about it...If you don't mind doing that then you don't need it aligned obviously...

[daway]

With all wheel drive you should replace all the tires at once.