Even with a deep lug tire, tread depth new is about 12/32 of an inch. Even if the other tires are half worn we are talking a difference of 6/32 of an inch. The new tire will have at most 1.2" larger circumference and a 12/32 larger diameter than a 50% worn tire. That isn't going to screw up anything.
Personally I prefer replacing tires in at least pairs but if money is tight I would do just the one and put it on the front but right rear works too.
|