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Re: [GMCnet] OEM vs Alcoa lug nuts [message #265554 is a reply to message #265535] Thu, 06 November 2014 13:14 Go to previous messageGo to previous message
Jim at the Co-op is currently offline  Jim at the Co-op   United States
Messages: 291
Registered: May 2014
Location: Orlando Florida
Karma:
Senior Member
The main reason for the torque spec difference is as Jim K. explained,
there is more friction to overcome with the one piece lug nuts. That 100
extra torque is probably to offset the friction there. I have used lug
nuts in both configurations. The high torque cut into the aluminum rim but
I made it home and lost no lug nuts. Putting Alcoa lug nuts on a steel rim
allos for chromed lug nuts look with a trim ring-- a nice look. I'm not
that wheel engineer but I saw no problems doing it in the field.

Jim bounds
--------------------------

On Thu, Nov 6, 2014 at 8:38 AM, Ken Harland wrote:

> I'm going to stick my neck out here as I am a mechanical enginner but not
> a GMC or wheel expert, but I see no reason Alcoa type lugnuts can't be used
> on steel wheels. Are we sure they're not in some other vehicle
> application?
> --
> 1978 Eleganza II
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