Outsource Posted October 1, 2006 Report Share Posted October 1, 2006 Whats is the maximum allowable torqueage on our lug nuts? Quote Link to comment Share on other sites More sharing options...
misterp Posted October 1, 2006 Report Share Posted October 1, 2006 85-95 ft. lbs (clean and dry) or thereabouts. Mr. P. Quote Link to comment Share on other sites More sharing options...
TurbochargedBerserker Posted October 1, 2006 Report Share Posted October 1, 2006 On PT.net, a GM tech posted the required torque on NBS truck lugs was 140 ft/lbs. He gave no reference for this number, however, and knowing Steve, he's got one... Quote Link to comment Share on other sites More sharing options...
Big O Posted October 1, 2006 Report Share Posted October 1, 2006 I believe it is the aluminum vs steel wheel discussion. Depends on the rim type as to the torque spec .... I could be wrong though ... Quote Link to comment Share on other sites More sharing options...
edessa Posted October 2, 2006 Report Share Posted October 2, 2006 Owners manual and service manual state 140 ft/lbs for our trucks. Quote Link to comment Share on other sites More sharing options...
SS_bnoon_SS Posted October 2, 2006 Report Share Posted October 2, 2006 Damn, I just snapped one off at 85-90 ft lbs yesterday!!! My post in the brake tech area here. Anyone know for sure if I have to take apart the axle to replace it??? Pain in my arse... Quote Link to comment Share on other sites More sharing options...
misterp Posted October 2, 2006 Report Share Posted October 2, 2006 On PT.net, a GM tech posted the required torque on NBS truck lugs was 140 ft/lbs. He gave no reference for this number, however, and knowing Steve, he's got one... I can't remember where I saw the 85-95 lb-ft number, however I can assure you it was a credible source and it's mentioned here on the forum in an earlier post. I am confident in this number after building numerous engines for a fastener to handle 140 ft-lbs it would have to be HUGE, like 5/8" or better depending on the steel alloy used. A quick lookup in the ISO standards says a 14mm bolt made of grade 8.8 steel yeilds at 101 ft-lbs; a grade 10.9 bolt yields at 131 ft-lbs; a grade 12.9 bolt yeilds at 158 ft-lbs. And I'm positive GM would not use an aerospace fastner on a wheel lug. Point is - torque wheel lugs to 85-95 ft-lbs. It is more important that the faces of the wheel flange and brake hub are clean, mated squarely, and torqued evenly than the actual torque spec (within reason). If you are still unsure, recheck lug nuts after 10-minutes of driving. Mr. P. Quote Link to comment Share on other sites More sharing options...
misterp Posted October 2, 2006 Report Share Posted October 2, 2006 Damn, I just snapped one off at 85-90 ft lbs yesterday!!! My post in the brake tech area here. Anyone know for sure if I have to take apart the axle to replace it??? Pain in my arse... Rear lug, or front lug? 2WD or AWD? Mr. P. Quote Link to comment Share on other sites More sharing options...
SS_bnoon_SS Posted October 2, 2006 Report Share Posted October 2, 2006 Damn, I just snapped one off at 85-90 ft lbs yesterday!!! My post in the brake tech area here. Anyone know for sure if I have to take apart the axle to replace it??? Pain in my arse... Rear lug, or front lug? 2WD or AWD? Mr. P. <{POST_SNAPBACK}> Right front AWD! Quote Link to comment Share on other sites More sharing options...
Outsource Posted October 4, 2006 Author Report Share Posted October 4, 2006 The reason I was asking is becuase I purchased a cordless impact driver for removing the lugs. After spending a day at the track with a friend...watching him remove his rear wheels so he can put on the slicks was painful. There's gotta be an easier way...............so I bought this: http://www.homedepot.com/prel80/HDUS/EN_US...84+3966&pos=n24 Is 850 in / lbs of torque enough? He tried it on his truck and they wouldn't move, but he probably over torqued them when he put them back on. Quote Link to comment Share on other sites More sharing options...
misterp Posted October 4, 2006 Report Share Posted October 4, 2006 The reason I was asking is becuase I purchased a cordless impact driver for removing the lugs. After spending a day at the track with a friend...watching him remove his rear wheels so he can put on the slicks was painful. There's gotta be an easier way...............so I bought this: http://www.homedepot.com/prel80/HDUS/EN_US...84+3966&pos=n24 Is 850 in / lbs of torque enough? He tried it on his truck and they wouldn't move, but he probably over torqued them when he put them back on. <{POST_SNAPBACK}> Hmm probably not. 850/12 = 70 ft-lbs. Quote Link to comment Share on other sites More sharing options...
Outsource Posted October 4, 2006 Author Report Share Posted October 4, 2006 The reason I was asking is becuase I purchased a cordless impact driver for removing the lugs. After spending a day at the track with a friend...watching him remove his rear wheels so he can put on the slicks was painful. There's gotta be an easier way...............so I bought this: http://www.homedepot.com/prel80/HDUS/EN_US...84+3966&pos=n24 Is 850 in / lbs of torque enough? He tried it on his truck and they wouldn't move, but he probably over torqued them when he put them back on. <{POST_SNAPBACK}> Hmm probably not. 850/12 = 70 ft-lbs. <{POST_SNAPBACK}> You got a point, P. Maybe I'll return it and get one a little more heavy duty. Quote Link to comment Share on other sites More sharing options...
SS_bnoon_SS Posted October 9, 2006 Report Share Posted October 9, 2006 The reason I was asking is becuase I purchased a cordless impact driver for removing the lugs. After spending a day at the track with a friend...watching him remove his rear wheels so he can put on the slicks was painful. There's gotta be an easier way...............so I bought this: http://www.homedepot.com/prel80/HDUS/EN_US...84+3966&pos=n24 Is 850 in / lbs of torque enough? He tried it on his truck and they wouldn't move, but he probably over torqued them when he put them back on. <{POST_SNAPBACK}> Hmm probably not. 850/12 = 70 ft-lbs. <{POST_SNAPBACK}> You got a point, P. Maybe I'll return it and get one a little more heavy duty. <{POST_SNAPBACK}> I wouldn't do that at all... zip them on with a gun, then do a final tightening with a real torque wrench! Quote Link to comment Share on other sites More sharing options...
Outsource Posted October 9, 2006 Author Report Share Posted October 9, 2006 The reason I was asking is becuase I purchased a cordless impact driver for removing the lugs. After spending a day at the track with a friend...watching him remove his rear wheels so he can put on the slicks was painful. There's gotta be an easier way...............so I bought this: http://www.homedepot.com/prel80/HDUS/EN_US...84+3966&pos=n24 Is 850 in / lbs of torque enough? He tried it on his truck and they wouldn't move, but he probably over torqued them when he put them back on. <{POST_SNAPBACK}> Hmm probably not. 850/12 = 70 ft-lbs. <{POST_SNAPBACK}> You got a point, P. Maybe I'll return it and get one a little more heavy duty. <{POST_SNAPBACK}> I wouldn't do that at all... zip them on with a gun, then do a final tightening with a real torque wrench! <{POST_SNAPBACK}> Another good point. Thanks. Quote Link to comment Share on other sites More sharing options...
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