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10-08-2018, 06:09 AM
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#1 |
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Registered User
Join Date: Mar 2015
Location: Manchester, CT
Posts: 429
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upper control arm nuts
Went to a show yesterday, and a fellow was looking in the engine bay. He turned to me and said "your alignment shims are laying under the control arms!" Sure enough, the control arm nuts had loosened, allowing the shims to slide out. After getting home and repairing the situation, I checked the search, and found this has happened to others, too. How common a problem is this, or should I have used new pinch nuts after I replaced the control arms?
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10-10-2018, 06:52 PM
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#2 |
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Senior Member
 
Join Date: Jul 2000
Location: North Texas
Posts: 3,430
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Re: upper control arm nuts
Yes, definitely use locking nuts! The ones you need are called "prevailing torque lock nuts". I was able to find them at a local industrial supply store, but you can also get them at BoltDepot.com.
https://www.boltdepot.com/Flange_nut...in_finish.aspx
__________________
Mike 1969 C10 LWB -- owned for 34 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 23 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! |
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10-11-2018, 04:00 AM
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#3 |
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Registered User
Join Date: Mar 2015
Location: Manchester, CT
Posts: 429
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Re: upper control arm nuts
Thanks for the info. Getting the truck re-aligned tomorrow
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