mwarren Posted April 8, 2006 Report Share Posted April 8, 2006 Not sure if this has been posted or not (yes I tried searching). What are the torque specs for lug nuts on the SSS? I was told two different stories. I had a problem with one or two loose on my Boss wheels recently. The guys who put the wheels on originally told me 110 for the Boss wheels and 130 for the factory. Now my local tire guy says 140 no matter what. Any help would be appreciated. Don't want to break any lug studs later down the road. Link to comment Share on other sites More sharing options...
ImpoSStor SS Posted April 8, 2006 Report Share Posted April 8, 2006 I'm reasonably confident the factory service manual says 140 ft.lbs. I think it's in the owners manual. Link to comment Share on other sites More sharing options...
AUTOGUY Posted April 8, 2006 Report Share Posted April 8, 2006 I think we were through this a couple weeks ago. The torque for the 12mm lugs on the 1500's is 85-95. I just installed new wheels on my 2500HD and the torque for the 14mm's is 140 according to the owners manual. I also found this: Lug Size Ft/Lbs Torque 7/16" 55-65 1/2" 75-85 9/16" 95-115 5/8" 135-145 12mm 72-80 14mm 85-95 Either way...I would not go over 85-90 for a 12mm stud. Link to comment Share on other sites More sharing options...
jboyss Posted April 8, 2006 Report Share Posted April 8, 2006 i always just tighten them down as hard as i can. I never thought they had to be torqued. Link to comment Share on other sites More sharing options...
Bob_the_builder Posted April 8, 2006 Report Share Posted April 8, 2006 I was told 140 from my dealer Bob Link to comment Share on other sites More sharing options...
mwarren Posted April 9, 2006 Author Report Share Posted April 9, 2006 I think we were through this a couple weeks ago. The torque for the 12mm lugs on the 1500's is 85-95. I just installed new wheels on my 2500HD and the torque for the 14mm's is 140 according to the owners manual. I also found this: Lug Size Ft/Lbs Torque 7/16" 55-65 1/2" 75-85 9/16" 95-115 5/8" 135-145 12mm 72-80 14mm 85-95 Either way...I would not go over 85-90 for a 12mm stud. <{POST_SNAPBACK}> Are you referring to the bolt size or lug nut size? On my factory lug nuts I use a 22 mm socket (or maybe 20). I have not looked at the owners manual yet, but went on and torqued them to 130...which did not seem like much more then they were already. Thanks for the info guys. Link to comment Share on other sites More sharing options...
AUTOGUY Posted April 9, 2006 Report Share Posted April 9, 2006 It is the stud size it is referring to. The owners manual says 1500 and 2500 series trucks (with 6 lugs?) are 14mm and torqued to 140, but the 2500's and 3500's all have 8 lugs. Can Zippy clear this up by asking one of his tech's? Link to comment Share on other sites More sharing options...
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