Locking wheel nut installation

[Retired Bob]

http://sandyblogs.com/techlink/?p=2569

 

"A high number of locking wheel nut kits are being damaged on the new 2014 Silverado 1500 and Sierra 1500. (Fig. 5) The locking wheel nuts are installed using a socket with a specially-shaped raised “key” that fits into a corresponding depression in the locking wheel nut."

<continue reading, w/pictures. at above link>

[2016 Sierra Owner]

Damage is going to keep happening then unfortunately. I don't know of any shop around here that uses a torque wrench to do the job.

[pm26]

I was uncomfortable torquing one of those locking lug nuts even with a hand torque wrench to 140 ft-lbs. It left strange as I was approaching higher torque levels, as if it would fail any second, so I backed it off and never installed them.

[pm26]

Damage is going to keep happening then unfortunately. I don't know of any shop around here that uses a torque wrench to do the job.

What GM dealerships and other dealerships as well around here use is an air impact wrench with a torque limiting extension. They should not be using an impact wrench on locking luig nuts even with a toque limiting extension, but they probably do.