Originally Posted by
lilmira
Let's say 1000lbft of torque at the driveshaft, that's more than plenty for most cars. Lug bolts are may be a few inches from the center of the wheel. Lets say 3 inches, that's 1/4ft. So the shear force at the lug bolts is 4000lb. That's not a whole lot for the bolts. A mid grade 1/2" bolt will take 8-9000lbs and that's just one bolt. I can't say for sure about the friction carrying all the torque but the bolts for sure can take it. With modern day machining, I think the holes are pretty well aligned with the bolts. Then you have the cone/ball seat so that all the bolts are pretty much ready to load. One reason to torque your nuts/bolts is to prevent them from backing out on it's own especially with moving parts. The bigger the bolt, the bigger the torque. That's just good practice at the minimum.
Bigger stud and nut bigger torque correct.
Ford recommends 150 lb ft for the Gt350 lugs.
I remember some of this stuff from a mechanics course I took a few years ago.
The PCD * number of studs * area of studs ... something something. Lol.
"The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents... some day the piecing together of dissociated knowledge will open up such terrifying vistas of reality, and of our frightful position therein, that we shall either go mad from the revelation or flee from the light into the peace and safety of a new Dark Age."
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