Lug nut torque specs

[Frkypunk70]

Hello, have a question about what to torque my lug nuts down to. Info I've found says 125 ft lbs but thats for modern chevy trucks. Is there a different spec for a 67-72 truck? By the way its a 70 cst with 6 lug ralley wheels (not aluminum) if this may make a difference. Thank You

[pulltilbroke]

What size stud is it 1/2" or 9/16"?

1/2 should torque to about 100-110 and a 9/16 should torque to about 120-140

[Frkypunk70]

1/2 I think, that helps a lot thank you.

[GuyO]

At the risk of resurrecting an old thread: Recently I had a tire nearly come off because I didn't check the lug nuts when I purchased the Blazer. Afterward I torqued them all to the recommended torque in the 1972 10-30 Overhaul Manual. Chart is below.

[Square_78]

I've been way overtightening mine. Mine is c10 with 6 lug and I've been doing them to 100ftlbs
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[cdowns]

torqueing lugnuts is way overrated
been changing wheels way over 50years never a problem well over a million miles on the road never a problem never used a torque wench not one time

[volksworld]

if it snaps off its too tight...if it falls off its too loose...try to get it somewhere in the middle...this applies to all fasteners

[Lattimer]

Originally Posted by volksworld

if it snaps off its too tight...if it falls off its too loose...try to get it somewhere in the middle...this applies to all fasteners

Tighten until it breaks, then back off 1/4 turn?

[68_Step]

Originally Posted by Lattimer

Tighten until it breaks, then back off 1/4 turn?

Now that's funny!!

[jabborabbo]

Originally Posted by cdowns

torqueing lugnuts is way overrated
been changing wheels way over 50years never a problem well over a million miles on the road never a problem never used a torque wench not one time

What you said. I've used the lug wrench many many times - cross tightening the nuts to make sure the wheel goes on right - final tightening consists of a good grunt using both hands on the end of the wrench.

[jabborabbo]

Originally Posted by cdowns

torqueing lugnuts is way overrated
been changing wheels way over 50years never a problem well over a million miles on the road never a problem never used a torque wench not one time

On the other hand, my BMW Z4 has alloy wheels - the factory jack set that came with the car came with a preset torque wrench for tightening the nuts - my comment above was in regard to steel wheels - alloy wheels are a different beast.

[GuyO]

Yeah, until I had both wheels fall off I never used a torque wrench either. It didnt seem to matter and mostly because I didn't own one. Aluminum rims are different. They flex more easily and I have heard nuts being too tight when under severe load such as swerve at higher speed they can shatter. It seems hand tools and even power tools are cheaper and more available today. We used to make and modify tools, now I just buy what I need.
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[cdowns]

been usin the same hand tight method on aluminium and magnesium wheels since about 65 still no problems even when racing
never had a wheel fall off either

like i said WAY OVERRATED

[29od1]

Originally Posted by cdowns

been usin the same hand tight method on aluminium and magnesium wheels since about 65 still no problems even when racing
never had a wheel fall off either

like i said WAY OVERRATED

Either that or you are a human torque wrench!

I've seen guys (unknowingly) overtighten the studs. Then a few weeks/months later after driving around, the studs break and the wheel falls off and damages the truck. There are only a few ways to be sure you know how tight the lugnuts are: 1) Through a lot of exerience 2) Luck 3) Or a torque wrench. This is a free country, so everyone gets to choose their option.

[Frkypunk70]

Holy old thread batman!....the reason I asked about torque specs originally was I was informed that your front roters on disk brake trucks have a better chance of warping, if they are tightened at different torques. I assume this is because of the heat and cooling cycles. Not sure if it mattered on my truck...but on my Subaru it stopped warping roters when I started torquing to spec.....just an FYI for people that replace old roters with replacement cheap Chinese metal ones.
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