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02-10-2008, 09:09 AM
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#1 |
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New Member
Join Date: Sep 2006
Location: texas
Posts: 118
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lower control arm u bolt question
on a 72 chevy truck im replacing the u bolts on the lower control arms but i was wondering how much you torque them them. thanks for any help
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02-10-2008, 12:20 PM
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#2 |
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Registered User
Join Date: Aug 2007
Location: Centerton, Ar
Posts: 21
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Re: lower control arm u bolt question
Hope this helps.
 I dont know for sure but it would think the smaller than 7/16 ublots would be at the 65 lbs, someone chime in if you know.
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Jason
Last edited by slow66; 02-10-2008 at 12:23 PM. |
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02-10-2008, 01:51 PM
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#3 | |
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Senior Member
Join Date: May 2004
Location: johnstown, NY
Posts: 2,393
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Re: lower control arm u bolt question
Quote:
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02-11-2008, 01:50 AM
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#4 |
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Questionable
Join Date: Mar 2005
Location: Atlanta
Posts: 13,376
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Re: lower control arm u bolt question
two related questions:
is it safe to swap out the stock nuts with poly-lock nuts? if using regular nuts, should you use blue threadlock or similar on the nuts? you know, a threadlock that can be broken fairly easily, but not without some torque? there are a lot of concepts that have confused me in the past with automotive. since i turned 15 and started having to wrench on my own cars with dad's supervision (thanks dad! i learned a TON!  ), he would always impart on me that you should tighten down firmly, and give an extra half a turn, that is sufficient on 99% of all things.i respect torque specs and use em if i have em...but i get really confused about when to use threadlock or anti-sieze. sorry if this is a thread hijack, i figured it was safe since the original question was answered, and it is related ....
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If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link) I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM. |
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02-11-2008, 03:05 AM
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#5 |
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A guy with a truck
Join Date: Sep 2005
Location: Germany, for now
Posts: 5,920
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Re: lower control arm u bolt question
I would use poly-locks or threadlocker and upgrade to the aforementioned 73-up larger diameter bolts.
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-Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy |
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02-11-2008, 08:44 PM
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#6 |
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It Is What It Is,,,,
Join Date: Aug 2006
Location: *The Gun Shine State*Florida*
Posts: 1,765
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Re: lower control arm u bolt question
About 2 grunts with a breaker bar eh?
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*79 C10 Short Box ST8 6 bang'r * *Lowered w/ 3" Control arms, 2" Lower Coils and 4" shackles and hangers W/ FLIP KIT *__--__* 79 C-10 project* .........................__ ..............._____ l __\___ ..............|_(O)_ |___(O) ] FAQ INDEX Thread The Kulture My Rat Den 
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02-11-2008, 09:04 PM
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#7 |
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Official Site Guitar Shredder
Join Date: May 2006
Location: Oz
Posts: 3,955
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Re: lower control arm u bolt question
on a added note i think 71 72 already have the larger size bolts...i just upgraded mine and there was no drilling to be done .it was 9/16 already...also Richard H just did this upgrade to..he has a 71 and he done no drilling also.....
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02-11-2008, 11:42 PM
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#8 |
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Senior Member
Join Date: May 2004
Location: johnstown, NY
Posts: 2,393
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Re: lower control arm u bolt question
so what size are the larger bolts supposed to be? Stock was 1/2" right? I have been shopping around for them, and some vendors are selling 7/16 and others 9/16. Why the difference?
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02-12-2008, 02:25 AM
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#9 |
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A guy with a truck
Join Date: Sep 2005
Location: Germany, for now
Posts: 5,920
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Re: lower control arm u bolt question
'73-up are 9/16. Peace of mind is my reasoning...
__________________
-Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy |
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02-12-2008, 09:04 AM
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#10 | |
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Senior Member
Join Date: May 2004
Location: johnstown, NY
Posts: 2,393
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Re: lower control arm u bolt question
Quote:
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02-13-2008, 10:01 AM
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#11 |
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New Member
Join Date: Sep 2006
Location: texas
Posts: 118
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Re: lower control arm u bolt question
i bought mine from lmc and their 9/16,so no one knows the torque specs
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