caddy rims lug nut question

[payrion]

what lugs are we using on caddy rims? are they stock? i have rims to put on tomorrow and was woundering if they are different?

[wrngwae]

thats a good question. i got a set of rims off a trooper and used those lugs too. i guess try your stockers and see how they fit as far as the taper of the nut to the rim. that is very very important.

[pennyman1]

Use what they call a bulged lugnut - the holes are for 14 mm lugs in the wheels and the bulge will make up for the difference from 12 to 14 mm

[camoit]

I’m not familiar with “caddy” rims. But what you need to look at is how rims are piloted. All rims are piloted by at least one of two things. Ether by the hub or the lug nut shoulders. Aluminum rims are normally thick and use a lug nut that has a long shoulder and no taper. Thus it’s pilot is the lug nut. Now the wheel hub normally pilots stock steel rims.

(Technical definition and understanding.)
First you should under stand why lug nuts have a taper. The reason is simple. –Shear-. Lets take a lug stud for example. Lets make it a small one. (¼ inch for example). Lets say it has a shear of 65 pounds, but has a tinsel strength or pull strength of 300 pounds. If a rim tries to spin on a stud with a tapered lug nut. Lets say 160 pounds of force. The rim pushes against the taper of the nut. The nut in turn, takes that force and turns it 90 degree, and works against the tinsel strength of the stud. And not against the shear of the stud. Keep in mind this stud will snap if the shier is over 65 pounds or the pull is over 300 pounds. So if the force is 160 pounds it is well with in the limits of the stud.