C6 wheel lug nut torque
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8th Gear
Joined: May 2005
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C6 wheel lug nut torque
Just bought the 2005 Vette and pulled the wheels to paint the calipers (traded my '58 vette for something I could enjoy driving). Anybody know the recommended 18 mm lug nut torgue? I ran them down to 40 ft lbs for now.
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From: Daytona Beach FL
Originally Posted by tleeker
Just bought the 2005 Vette and pulled the wheels to paint the calipers (traded my '58 vette for something I could enjoy driving). Anybody know the recommended 18 mm lug nut torgue? I ran them down to 40 ft lbs for now.
Bob
Edited:
BTW, the stock lug nuts are 19mm. I put on chrome McGard lug nuts from Pep Boys and they are 13/16".
Last edited by BEZ06; May 3, 2005 at 04:52 PM.
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From: Central Florida
The normal guidance is to torque each wheel in a three step process that reaches 100 in the third step.
I use 40, 70, 100. Each lug to 40, then each to 70 etc, tightning lugs in a star pattern (no two adjacent lugs sequentially).
Not taking down to anyone. Some folks do their first torquing on their new Corvette.
Ranger
I use 40, 70, 100. Each lug to 40, then each to 70 etc, tightning lugs in a star pattern (no two adjacent lugs sequentially).
Not taking down to anyone. Some folks do their first torquing on their new Corvette.
Ranger
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Joined: Jan 2005
Posts: 10,924
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From: Daytona Beach FL
Originally Posted by Ranger
The normal guidance is to torque each wheel in a three step process that reaches 100 in the third step.
I use 40, 70, 100. Each lug to 40, then each to 70 etc, tightning lugs in a star pattern (no two adjacent lugs sequentially).
Not taking down to anyone. Some folks do their first torquing on their new Corvette.
Ranger
I use 40, 70, 100. Each lug to 40, then each to 70 etc, tightning lugs in a star pattern (no two adjacent lugs sequentially).
Not taking down to anyone. Some folks do their first torquing on their new Corvette.
Ranger
That torque spec is about the only one in the Owner's Manual.
Ranger Bob
RLTW!!
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Lug Nuts
The longer McGard (24137) is 19mm - the shorter one (24157) is 13/16. Other poster on the forum said to use the longer one since the short one may bottom out against the lug. I think the 24137 is the correct one to use plus you dont have to carry anything other than a 19mm socket.
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From: Daytona Beach FL
Originally Posted by jhbrennan
The longer McGard (24137) is 19mm - the shorter one (24157) is 13/16. Other poster on the forum said to use the longer one since the short one may bottom out against the lug. I think the 24137 is the correct one to use plus you dont have to carry anything other than a 19mm socket.
I've got the McGard 64002, which is a 4 pack of their 60002 lug nut. These are an M12x1.5 thread and require a 13/16" socket. They were the only ones I saw in the catalog for a C6 (and I just checked the website as well).
I just went out and measured, and they are plenty deep so the lug won't bottom out before the cone is seated at torque specs.
The numbers you gave are for locking lug nuts that require a keyed socket. I don't have them and don't know nuttin' 'bout 'em, but your advice to get the longer ones sounds good.
Bob
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From: Daytona Beach FL
Originally Posted by jhbrennan
The web site also shows 64012, which is the longer one that I use. I chose this part number since it was a 19mm socket size. Go to Summitracing.com and search on mcgard - you can do comparisons.
The McGard application info that I read at Pep Boys (and online) didn't have the 64012 listed as a lug nut for the C6, so I got the 64002.
I checked on the Summitracing.com website and can see the difference. The 64002 is a straight sided lug nut, whereas the 64012 is a "bulge cone" lug nut.
As far as I can tell, they are exactly the same length, just different in the cone area. And, as has been mentioned, the 64012 uses a 3/4" (which is the same as 19mm) socket, and the 64002 uses a 13/16" socket.
I'm glad to hear that either one fits and can be used. Here's a picture of each one so anybody that wants to get some can pick the one they want.
Bob
Here's the straight sided 13/16" 64002:
and here's the bulge-cone 3/4"/19mm 64012:
