Lugnut torque was 100 foot pounds on the F-150, and Explorer. I seated them with the impact and then hand torqued them with a calibrated torque wrench.I don’t know what standard procedure is in the average tyre shop in the US but the trick is to use the correct size socket and then, rather than air gun them to death do them to a point and hand tighten with a torque wrench to the correct number.
For the life of me I can’t understand why people feel the need to almost friction weld the lugs to the wheel!
I'll bet it was customers infinite wisdom of having "shiny" that drove Ford to take the steps they did. My guess is folks that never changed a tire in their life we're the bulk of the demand for "shiny".Turns out that Ford in their infinite wisdom have a chrome or cover on the steel of many of the nuts which can swell. My vehicle is only a few years old. Needless to say there are now new nuts all the way around that are single piece solid steel.
Actually, only one side of the vehicle used reversed thread lug nuts.View attachment 1209798
During high school I drove a 1953 Dodge truck that looked similar to this but not as nice. Got a flat and went to loosen the lugs. On Chrysler products during those years the threads were reversed. So to loosen was the opposite as you would think. I am heaving with all my might to loosen the lugs and am actually tightening them. To make it worse, the lug would budge just a bit and my thought is, "Ah, finally it is starting to loosen up..."
The reason they were reverse threaded is a good example of over engineering. The engineers feared that the spinning of the tires would loosen the lugs. So they were reverse threaded so that as the tires spun they would tighten the nuts. And yes, at some point Chrysler looked around and noticed that Ford and GM products did not have wheels spinning off into the ditches.
Yes, I stand corrected. Now that you mentioned it that is exactly how I remember it. This explains why it was so confusing for a high school kid. Chrysler engineers figured the lugs would only spin off on one side of the vehicle and not the other. So they reverse threaded only the one side. Sigh...Actually, only one side of the vehicle used reversed thread lug nuts.