[63gearhead]

While swapping out from the winter wheel /tire set to summer wheel /tire set, I referred to both the .pdf available on the Mopar app and hard copy of the Owners Manual and the only wheel torque spec I could find is 130 ft-lb. I recently searched the forum and found that SRT models wheel torque spec is 110 ft-lb.

What are you other DD TNG owners using as a torque spec? I am going to assume the DD TNG SRT components warrant using the 110 ft-lb torque spec.

Now, that the lug nuts are sitting @ 130 ft-lb, do I just back off each lug nut and re-tighten to 110 ft-lb? Is there any specific procedure that I should follow under the circumstances?

Thanks for the input.

Pat

 

[Vice-White]

The specs for SRT models is 110ft lbs and for all other models is 130ft lbs of torque.
When I put my locks on my wheels I felt 130ft lbs was pretty damn high but did it anyway.
I checked the factory service manual and it has this:

 

[wvhemis]

I would use the 110 on the 20" wheels...

 

[Vice-White]

130ft lbs feels like you are about to pull a stud out of the hub.

 

[63gearhead]

I am going to back them off to 110.

 

[Chase300]

I concur with others, I put my 20" aluminum wheels at 110.

 

[bigunit54]

130 ain’t going to hurt a thing. Lol.

 

[2021rttowngo]

I bought a new winter tire and wheel package Last season and the tire shop had the same question.
I used my dealers service department for reference and was told the TNG wheel torque is same as SRT 110. Confirmed the same with the parts manager. Owners manual and other references will direct you to 130 which is for regular RT models.

 

[cambo]

I would be curious to know what the factory used. Don't torques wrenches work in reverse? set it to 110 see if it breaks loose then go to 120 then 130 etc

 

[63gearhead]

I would be curious to know what the factory used. Don't torques wrenches work in reverse? set it to 110 see if it breaks loose then go to 120 then 130 etc

True. My torque wrenches do work in both directions. Now if we could find a member with a new TNG willing to validate your theory.

 

[cambo]

I need a bigger torque wrench mine only goes to 100

 

[Urbish]

I would be curious to know what the factory used. Don't torques wrenches work in reverse? set it to 110 see if it breaks loose then go to 120 then 130 etc

Nope, the torque required to break them loose will be higher than the torque used to install them. Static friction is greater than dynamic friction. Here is a generalized diagram for force vs. friction for a simple sliding scenario. Of course in the case of a fastener, once the fastener begins moving, the clamping load either increases or decreases depending on the direction you are turning it. So the curve shape will be different, but the same idea applies:

 

[frictioncircle]

I was going to say I would not back off a nut to leave it at less torque...I would remove and retighten to spec

 

[cambo]

Could you place your toque wrench on mark the socket, lug and tire where the handle is loosen with another tool then realign the marks and torque it. That should give you a good idea 110 to 130 should be a decent amount of exta distance in the twist action for that much additional or minimal torque. based on the way the oil filter was applied its probably torqued to 180 from the factory

 

[63gearhead]

Nope, the torque required to break them loose will be higher than the torque used to install them. Static friction is greater than dynamic friction. Here is a generalized diagram for force vs. friction for a simple sliding scenario. Of course in the case of a fastener, once the fastener begins moving, the clamping load either increases or decreases depending on the direction you are turning it. So the curve shape will be different, but the same idea applies:

View attachment 121389

With a response like that you gotta be an engineer!

 

[63gearhead]

I was going to say I would not back off a nut to leave it at less torque...I would remove and retighten to spec

Yep. I loosened each lug nut to to “hand loose” then retightened to spec (110)