That is a really good deal for a new pair of spindles. The ebay ad is a little misleading probably because the guy doesn't know much about Mopars. Those are 73-74 A/E body spindles. They'll fit any ABE car from '62-'72 and can be used for disc brake conversions. He probably just doesn't know that or didn't want to type it all in. In any case, that is a killer price. He must be buying them wholesale and selling them for just a small markup. Most people charge about twice as much for the same knuckles.