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03-24-2011, 10:37 AM
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#1 |
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It followed me home?
Join Date: Mar 2003
Location: Yup
Posts: 5,751
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u bolts not staying tigvht
the ubolts on my dually loosen up every couple hundred miles, any ideas why? I used new hrdware and ubolts with the flip kit, even put new nuts on them. Should I try a nylon nut? Double them up?
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Adam That's why they call it a shortcut Kyle, if it was easy it would just be the way. 86 c-10 SWB 85 CCSB 90 GMC K30 Crew SRW 1985 C30 Dually |
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03-24-2011, 10:53 AM
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#2 |
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Slots go on anything!
Join Date: May 2003
Location: Richardson, TX
Posts: 5,957
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Re: u bolts not staying tigvht
I would definitely use some kind of locking nut if they are backing off. Maybe some loctite too?
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1974 Jimmy- 5.3/4L80e/NP241 |
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03-24-2011, 04:27 PM
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#3 |
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Parts and more parts
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
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Re: u bolts not staying tigvht
Did you try double nutting the U-bolts?
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Frank |
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03-24-2011, 04:40 PM
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#4 |
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Registered User
Join Date: May 2010
Location: Lewis County, WA
Posts: 1,523
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Re: u bolts not staying tigvht
You could always drill and run safety wire.
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03-24-2011, 06:07 PM
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#5 |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,071
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Re: u bolts not staying tigvht
Use nyloc nuts w/lock washers on the u-bolts.
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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03-24-2011, 09:25 PM
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#6 |
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Registered User
Join Date: Aug 2008
Location: Dexter, N.M.
Posts: 1,082
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Re: u bolts not staying tigvht
Nylon nuts with lock washers and some loc-tite. Had the same problem with my 81 back in the day and this fixed it.
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Its Kool to be a square  2013 Chevy Silverado Z71 w/ 7" lift and 35" Nitto's 1985 C-10 ......My dream truck (under construction) 1984 k 10 Silverado...6" lift with 38.5 super swampers  New Mexico Member ---  Member of the Square Body Club--- 
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03-25-2011, 10:11 AM
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#7 |
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It followed me home?
Join Date: Mar 2003
Location: Yup
Posts: 5,751
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Re: u bolts not staying tigvht
Thanks for the help guys, I think ill try the nylon nuts/lock washers. Can anyone save a few minutes tell me what size nuts I'll need?
Posted via Mobile Device
__________________
Adam That's why they call it a shortcut Kyle, if it was easy it would just be the way. 86 c-10 SWB 85 CCSB 90 GMC K30 Crew SRW 1985 C30 Dually |
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03-25-2011, 11:22 AM
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#8 |
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GoatLube Experss
 
Join Date: Oct 2009
Location: clarksville, Tn.
Posts: 1,337
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Re: u bolts not staying tigvht
most U-bolts will be 1/2X20. also make sure nothen is bend'n, does the brackets that sit on the spring fit tight against the plate on top ? if there is any room for movement the torque of the axle will find it and bend the brackets or stretch the bolt's. also I would'nt use lock nuts and lock washers together, just more room for strech'n the bolts.
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Goat Lube Express, locations in Qalat,Afghanistan & Clarksville, Tn. '87 R30 dually 454/TH400 '85 1/2 ton CCSB '92 S10 350/350 '84 MonteCarlo 383/PG/9"ford '78 Malibu wagon 350/350 '78 Cutlass (project family car) '96 S10 Jimmy (Moma's) |
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