Tires/Inspection

So I bought a new car I have to get registered in PA this weekend. I hit a pothole and got a bubble in the sidewall of a tire. Being awd I hear your supposed to replace all 4. Anyway, anyone on here get a good deal on tires and able to do an inspection?

fronts are 275 40 20
rears are 315 35 20

those are some nice sizes. I got 4 275/40/20’s toyo proxes 4’s for 650 shipped on ebay. Was the best deal i could find. I would bet you would get a better deal on ebay as well. I went with east coast tires. They had great prices and i had them in 3 days.

U need to if you have all 4 tire size the same, but you have different sized tires. So I don’t think it matters. But don’t quote me