This thread has been very helpful to me. When I bought my wheels and tires several years ago I had this same discussion with my local tire store. After several calls to their distributor for Cragar wheels they told me that the conical lug nuts were all that were available and I had to use them. I had some of the correct lug nuts and showed them to them, but they couldn’t order them at the time. I believe my dealer, but I think they got the wrong information from their distributor. Photos of my wheel and a lug nut I just removed. It’s a 13/16” socket size. As you can see, my wheels do not have the tapered seat. The car has been driven very little since the wheels were installed, and only locally at low speeds. There doesn’t appear to be any damage to the wheel. I looked on the Summit site as suggested and found the left hand nuts (9004-4) and am going to order full set (3 bags full) of each. Thanks again. I knew this wasn’t right.
I can speak personally to the need to torque correctly and re-torque the lug nuts. I had just had my high-school ‘65 Dart GoGo into a tire store for new shoes and immediately took off on a 300 mile round trip. On the way back I kept hearing a”clicking” sound and got out a couple time to check the source of the noise but couldn’t see anything to cause it. A few minutes after my last check I sheared 4 lug studs on my left rear wheel at high speed. I was able to get it stopped safely and without damage, but it was a real eye-opener. Thanks again for this post. My new new nuts are on the way.
View attachment 1716247696
View attachment 1716247698