I installed the new set of tires/wheels (Pro Comp 35" + 17x9) last week. I torque them to 100 ft. lbs. Does that sound right? I just want to make sure.

Thanks!

 

i think thats more that what is required...

 

95 ft. lbs. of torque is what you want to be tightening them down to but an extra 5 ft. lbs. shouldn't hurt them.

 

Thanks WOL for clarifying!

 

since they are new wheels, don't forget to keep checking the torque!! it's a good idea for new wheels to check!

 

Agreed - at least once after 100 miles especially if the wheels are aluminum.

 

Hey I i'm curious how many lb/ft an impact wrench creates on those wheels. I've just seen alot of mechanics just tighten the nuts with the impact wrench and i've just always thought thats bad for the bolts.

 

IMHO, using an impact wrench is VERY BAD for wheel studs and are a good way to break them. At least, I have had multiple wheel studs break from shops using an impact wrench on my wheels. That's one of the reasons why I am so reluctant to have anyone work on my Jeep but me and if and when I need to have a mechanic work on my Jeep, I always ask as nicely as I can that they please hand torque my lug nuts back on.

 

I just wanted to add that I have seen more automotive disasters caused by impacting lug nuts than I can count. If a mechanic does not use a torque wrench on lug nuts, as far as I'm concerned he is not a real mechanic.

Some typical 1/2" impacts can tighten to over 400Lbft of torque. But even worse, because of the hammering action, when the gun or air supply fails the lugs get left loose and it is almost impossible to tell.

It makes sense that an impact can provide 400+ lb ft of torque but you can hang onto its 8 inch long handle without the gun being ripped from your hands. You are isolated from the real force by the hammering action. Likewise the force cannot be felt when the gun or air fails. There can be "impact gun action" with no real tightening. So if you use an impact to tighten lug nuts you may kill a person every time your gun fails or the compressor goes flat. It is only a life right? Impacts and air compressors don't fail that often right.

 

Just a quick note here about impacts. You have to watch close as they tire guys may be using torq sticks, which limit the amount of damage an impact can do.

Just something to think about before yelling at someone.