U-Bolt Torque - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dave2953 · 02-19-2007, 12:39 AM

I just installed my Super Track Bar and the torque specs for the u-bolts is 215 ft. lbs. My torque wrench only goes to 150, so I torqued them to that. Will this be o.k. and has anybody else had a similar issue?

**WorkinLonghorn** · 02-19-2007, 01:10 AM

I would think so,but to be sure you could put a ratchet on there of the same length and tighten with a force about 1/3 greater than what it took to get to 150.

jimmydean · 02-19-2007, 01:33 AM

I put a breaker bar and wrenched them as tight as I could. They are tight, but I'm not too sure how tight because I have the same issue. It took everything I had to get them off (I don't have an impact) so I doubt I can over tighten them.

GREASEMONKEY72 · 02-19-2007, 05:22 AM

just put them as tight as you can get them, we did that on the the race car and the axle hasnt moved from where we put it

dave2953 · 02-19-2007, 07:46 AM

Thanks for the input guys. It took everything I could muster just to get it to 150. I didn't see how they could come loose, but I thought I would ask those who know just in case.

**WorkinLonghorn** · 02-19-2007, 09:46 AM

In cases like this I have a length of galv.pipe I put over my breaker bar and make a 2' handle then divide the torque figure 1/2.For 215 I would just imagine how much effort it would take to lift 107 lbs.and apply that to the 2' handle.Or make a 3' handle and pull 70 lbs.This will also weed out the Chinese breaker-bars and sockets from your tool box as they will break at about 120 lbs.

sleepyboy · 02-19-2007, 11:22 PM

Quote:

Originally Posted by WorkinLonghorn

In cases like this I have a length of galv.pipe I put over my breaker bar and make a 2' handle then divide the torque figure 1/2.For 215 I would just imagine how much effort it would take to lift 107 lbs.and apply that to the 2' handle.Or make a 3' handle and pull 70 lbs.This will also weed out the Chinese breaker-bars and sockets from your tool box as they will break at about 120 lbs.

Tried to get my u bolts off this weekend; went through 2 1/2" socket wrenches until Mr. Sawzall had to come to the rescue..amazing what 35 years of grime will do to bolts.

**WorkinLonghorn** · 02-20-2007, 10:27 AM

Did you soak them with penetrating oil first?

sleepyboy · 02-21-2007, 05:08 PM

3 days

piecesparts · 02-21-2007, 05:57 PM

I have always set mine with the 1/2" drive air impact and to this day, no problems. That is on five different trucks.

PanelDeland · 02-21-2007, 08:18 PM

If you do much heavy work like this a torque multiplier is a wise investment.I don't have one but have used them at work to set torque as high as 900 ft lbs.They are gear reducting so you do have to have room to swing the handle of the torque wrench.

02-19-2007, 12:39 AM	#1
dave2953 Dave's not here, man Join Date: Jun 2004 Location: Winder, Georgia Posts: 2,000	U-Bolt Torque I just installed my Super Track Bar and the torque specs for the u-bolts is 215 ft. lbs. My torque wrench only goes to 150, so I torqued them to that. Will this be o.k. and has anybody else had a similar issue? __________________ - 2014 VW Jetta - 2015 VW Jetta - 1966 Ford F-250 Last edited by dave2953; 02-19-2007 at 12:40 AM.

02-19-2007, 01:10 AM	#2
WorkinLonghorn Senior Member Join Date: Dec 2006 Location: Studio City, Calif. Posts: 2,861	Re: U-Bolt Torque I would think so,but to be sure you could put a ratchet on there of the same length and tighten with a force about 1/3 greater than what it took to get to 150. __________________ '69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, 2nd owner, Work-Truck supreme. Best $300 I ever spent.

02-19-2007, 01:33 AM	#3
jimmydean Registered User Join Date: May 2005 Location: Beaverton, OR Posts: 3,728	Re: U-Bolt Torque I put a breaker bar and wrenched them as tight as I could. They are tight, but I'm not too sure how tight because I have the same issue. It took everything I had to get them off (I don't have an impact) so I doubt I can over tighten them. __________________ New Project: 1966 LWB C20 Plans: 1/2 ton conversion Dropmember front Dropmember rear Corvette discs Restored raised bed http://67-72chevytrucks.com/vboard/s....php?p=4295210

02-19-2007, 05:22 AM	#4
GREASEMONKEY72 Registered User Join Date: Aug 2006 Location: Bakersfield,CA Posts: 7,893	Re: U-Bolt Torque just put them as tight as you can get them, we did that on the the race car and the axle hasnt moved from where we put it __________________ -steven Alte Seele S.S. "Allison" '72 C/10 LWB 350SB/TH350 - DD PITBULL IS NOT A CRIME

02-19-2007, 07:46 AM	#5
dave2953 Dave's not here, man Join Date: Jun 2004 Location: Winder, Georgia Posts: 2,000	Re: U-Bolt Torque Thanks for the input guys. It took everything I could muster just to get it to 150. I didn't see how they could come loose, but I thought I would ask those who know just in case. __________________ - 2014 VW Jetta - 2015 VW Jetta - 1966 Ford F-250

02-19-2007, 09:46 AM	#6
WorkinLonghorn Senior Member Join Date: Dec 2006 Location: Studio City, Calif. Posts: 2,861	Re: U-Bolt Torque In cases like this I have a length of galv.pipe I put over my breaker bar and make a 2' handle then divide the torque figure 1/2.For 215 I would just imagine how much effort it would take to lift 107 lbs.and apply that to the 2' handle.Or make a 3' handle and pull 70 lbs.This will also weed out the Chinese breaker-bars and sockets from your tool box as they will break at about 120 lbs. __________________ '69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, 2nd owner, Work-Truck supreme. Best $300 I ever spent. Last edited by WorkinLonghorn; 02-19-2007 at 09:49 AM.

02-20-2007, 10:27 AM	#8
WorkinLonghorn Senior Member Join Date: Dec 2006 Location: Studio City, Calif. Posts: 2,861	Re: U-Bolt Torque Did you soak them with penetrating oil first? __________________ '69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, 2nd owner, Work-Truck supreme. Best $300 I ever spent.

02-21-2007, 05:08 PM	#9
sleepyboy '69 Step Join Date: Mar 2005 Location: Marion, Texas Posts: 722	Re: U-Bolt Torque 3 days

02-21-2007, 05:57 PM	#10
piecesparts Parts and more parts Join Date: Nov 2003 Location: Lebo, Kansas (middle of nowhere Posts: 6,821	Re: U-Bolt Torque I have always set mine with the 1/2" drive air impact and to this day, no problems. That is on five different trucks.

02-21-2007, 08:18 PM	#11
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,993	Re: U-Bolt Torque If you do much heavy work like this a torque multiplier is a wise investment.I don't have one but have used them at work to set torque as high as 900 ft lbs.They are gear reducting so you do have to have room to swing the handle of the torque wrench. __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"



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