Well here’s my experience but agree-go someplace else except Walmart. I bought a new 86 Buick Park Ave. It was a special order so never sat on the lot or was driven by anyone except off the truck. At about 30K, the left rear tire was getting some flat spots. I talked to the Goodyear dealer and he said that I needed a four wheel alignment. When I protested that it was brand new he said that transport can throw it off. I drove it a little more until it was more octagon shape than round and conceded to the 4 wheel alignment and put new tires on it. We drove it up to about 120K and never had a problem again. So I’d say have it aligned and also could be the struts.