CAN U HELP ME PLEASE,I got a flat today and the garage advised me to get 4 new tyres.They say that subaru advises that the tyres should not be more than2mm in tread difference as this can cause problems to gear box/diff.I got two new tyres on the front anyway as I didn't want any handling problems.
THE QUESTION IS,SHOULD I GO BACK AND GET THE BACK TWO DONE AS WELL??????
a swift answer would be greatly appreciated.....thanks

 

They are right about damaging the diff but if the fronts only need changing then just do them. Can't see the point of doing all four if the rears are in good condition