Those guys are in Michigan, not Noo Joisey, Jerry. I've looked at them before and they mainly carry machine tool tapers (Morse, Jacobs, and B&S), but automotive tapers for ball joints and tie rod ends are quite a bit steeper than that, typically 7 degree or 10 degree. Here's a possible source. Link

Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.