The guy at Carlisle goes by the name "Wheeler Dealers", Bill Cooper, 717-284-2638 or 717-872-8623. He is in Holtwood, PA. He doesn't ship anymore, so you have to catch him at a show or pick them up. He stocks 15x8 - 4" backspacing, but will make any back spacing you want. Very reasonable (1/2 the price of Stockton). We put them on our old 64 Ply.