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Lug nuts, that is, for my dually '65 F-350. I've done a fair amount of reading here and on other forums, but haven't seen this exact situation addressed:
My rear is a Dana 70 out of a '68-'72, with 8 lugs. Some time ago I'd bought four new dually rims which are coined. I think these rims were intended for a hub-centered axle due to the presence of small slots (for a locating pin), but they fit my axle and sit flat on the hub/drum.
Four of the stud holes are convex, and the (conical/tapered) nuts on those studs do center the wheels properly. But the areas around the other four holes are basically flat! Should I be using a flat-face nut on those? Or using the existing nuts reversed (flat face toward the rim)?
I've been running them with the tapered surface of all eight nuts contacting the rim. I've never had a problem with them, even while carrying large amounts of firewood. (Other than my adventure with the left side duallies coming off at 50 mph but that was carelessness on my part, having forgotten to torque them!) Thanks for any advice...
I've done some more reading... there seems to be some difference of opinion. Older Dodge Rams are supposed to center the wheels with two conical nuts, then install six flanged nuts, finally remove the conical ones and put on the last two flanged nuts! https://www.dieseltruckresource.com/...speeds-160625/
On the other hand, at least one user (BearKiller, see his post #6 in particular) argues strongly that old Fords should use conical nuts on all eight (which is what I have currently). https://www.dieseltruckresource.com/...wheels-248980/
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I may have the wrong nuts
