![]() |
![]() |
#1 |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
|
9/16 lug nut torque?
My book says 118ft lbs, the local tire store says 140 ft lbs, now i have a broken stud, what say you?? need a consensus please, Thanks!
__________________
Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's |
![]() |
![]() |
![]() |
#2 |
20' Daredevil (Ret)
![]() Join Date: May 2003
Location: Jefferson State
Posts: 13,647
|
Re: 9/16 lug nut torque?
The chart I Googled didn't go back to older trucks, but under Not Listed (near bottom of chart) it shows 140# for 9/16" lugs. Gotta be better info out there but I didn't find it...
http://www.discounttiredirect.com/in...eelTorque.html
__________________
- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
![]() |
![]() |
![]() |
#3 |
Senior Member
![]() Join Date: Mar 2003
Location: Colfax-California
Posts: 8,553
|
Re: 9/16 lug nut torque?
I pull all of mine down to 110
|
![]() |
![]() |
![]() |
#4 |
horsepower junkie
Join Date: Aug 2003
Location: graham, washington
Posts: 326
|
Re: 9/16 lug nut torque?
more than any honda civic engine makes...
![]() ![]()
__________________
67 ![]() 71 olds cutlass "S" mom bought new..12.30s@113MPH |
![]() |
![]() |
![]() |
#5 |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
|
Re: 9/16 lug nut torque?
Yea Discount was the place that snapped it off, as soon as they said 140 ft lbs i about shat a brick.. i believe i also used 110-115 last time i did it myself.. i told them on the spot after it happened i would never have gone past 120.
Now my concern is this, if it was tight enough to snap one off whats the chance that they just elongated all my brand new studs and brand new mag lug nuts? I just parked the truck when i got home and have a full plate tomorrow but i want to back them all off and retorque to about 110 asap. The store manager said they would pay for the repair but if course i'm out my truck for a while and getting rides to places or back home is a pita during the week, plus who to trust, they wanted me to take the thing to Apex but the last time i let Apex touch my dakota it was a disaster. I could just do it myself but i doubt they would pay for that.
__________________
Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's |
![]() |
![]() |
![]() |
#6 |
Registered User
Join Date: Apr 2011
Location: Klein Texas
Posts: 3,852
|
Re: 9/16 lug nut torque?
Maximum torque and clamping force on a 9/16" nut is obtained closer to 160lbs. That's if the stud/nut is of high enough grade. Was this a new stud?
There's a cool app called iengineer that list all sorts of information about threaded fasteners
__________________
My Classics: '72 K20 Suburban + '65 Dodge Town Wagon '72 Corvette Roadster +'67 Corvette Roadster '73 Z-28 Camaro '63 Ford SWB Uni Pickup '50 Ford Coupe |
![]() |
![]() |
![]() |
#7 |
Registered User
Join Date: Jun 2006
Location: Indiana
Posts: 4,859
|
Re: 9/16 lug nut torque?
I hand torque my lug nut with a torque wrench. Cars I use 110 lb-ft and trucks I use 120 lb-ft. I also put some white grease on the stud. The lubricity give me more tension for the same torque reading, and my lug nut do not rust in place.
In Indianapolis, I have found that the big tire guys hand torque lug nuts. In Cincinnati, not so much.
__________________
'70 GMC C1500 LWB Power disc brakes. WooHoo! Posi 6 Lug Dana 60 |
![]() |
![]() |
![]() |
Bookmarks |
|
|