Lug nut torque?
Thread Starter
Le Mans Master
Joined: Mar 2010
Posts: 6,501
Likes: 1,938
From: The Golden Triangle, Florida
2024 C2 of the Year Finalist - Unmodified
2023 C2 of the Year Finalist - Unmodified
St. Jude Donor '20 thru '25
Lug nut torque?
Can anyone tell me how much to torque the lug nuts on aftermarket bolt-ons for a '67?
Thanks,
-- Steve
Thanks,
-- Steve
Le Mans Master
Joined: Apr 2001
Posts: 9,556
Likes: 288
From: Granbury Texas
I do NOT disagree with this.
However, the factory specs for my 2004 Z06 lugs are 100ft lbs, and they are the same size. Also my 1963 Z06 wheels would loosen their lugs when used on a racetrack with mag wheels and race tires, so I have used 100ft lbs on my 1963 race car for um.......40 years or so.
However, the factory specs for my 2004 Z06 lugs are 100ft lbs, and they are the same size. Also my 1963 Z06 wheels would loosen their lugs when used on a racetrack with mag wheels and race tires, so I have used 100ft lbs on my 1963 race car for um.......40 years or so.
Drifting
Joined: Jul 2005
Posts: 1,977
Likes: 195
From: Putnam Valley, New York. Amateur Radio Operator K2NS
Torque
My aftermarket bolt-ons have been on & off many times, and set to 75 foot pounds since I first installed them back in 1989. They've never come loose. 
RON
Race Director
Joined: Nov 2000
Posts: 10,343
Likes: 668
From: Beverly Hills (Pine Ridge) Florida
With American Racing TTD aluminum rims with the cone lug nuts, I had to go up to 85 ft.-lbs. before I stopped seeing the need to retorque.
I started at 65, and saw loosening after a few rides.
In other words, depends on the rim material, size of the stud, the shape of the lug nut interface to the rim, etc.
Start with the factory torque setting, and see if they are still tight after a few heat cycles. If not tight, step up in 5 or 10 ft.-lbs. increments (within reason) until they stay tight.
Plasticman
I started at 65, and saw loosening after a few rides.
In other words, depends on the rim material, size of the stud, the shape of the lug nut interface to the rim, etc.
Start with the factory torque setting, and see if they are still tight after a few heat cycles. If not tight, step up in 5 or 10 ft.-lbs. increments (within reason) until they stay tight.
Plasticman
Thread Starter
Le Mans Master
Joined: Mar 2010
Posts: 6,501
Likes: 1,938
From: The Golden Triangle, Florida
2024 C2 of the Year Finalist - Unmodified
2023 C2 of the Year Finalist - Unmodified
St. Jude Donor '20 thru '25
I just looked up the wheel torque recommendation in the 1967 Chassis Service Manual and it says 75 pounds so that's what I used and I'll recheck after I've put some miles on the car.
Thanks, everyone, for the help.
-- Steve
Thanks, everyone, for the help.
-- Steve
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