GM Truck Club
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 4 of 4
  1. #1

    Default A-arm Nut working loose

    I recently bought tires for my 05 Z71 and while it was in I had it aligned. A few weeks later, I noticed this sound that kept getting more persistant. I checked under the truck and did not see anything suspisous but that did not satisify me so I took it back in and we found that the nut was working itself off the upper A-Arm on the passenger side. The guy at the shop was nice enough to realign the truck for free and made sure that the nut was tightened down. Today, after driving it for about 100 miles, I noticed when I make a sharp turn, the sound is back, so I checked the nut again. It was backing itself off, not much but enough that I could tighten it back with my hand.

    Does anyone have any idea what would cause this? I know it was tightened up the second time because I watched the guy tighten it.

  2. #2
    Legend unplugged's Avatar
    Join Date
    Sep 2006
    High Deserts of SoCal


    If you are referring to the upper control arm nut and adjustment cam, are you torquing to 140ft/lbs? If you are, then the threads are distorted and the hardware should be replaced. As an alternate you could try loctite.
    There is no way to happiness....happiness is the way.:yipi:  _vXMYypuKMJFw671uF2ZPhjez_j-atRmcjM2zQKpQi1JSsB75/burb1.JPG
    High Desert SoCal
    93 K1500 burb (personal) 350 AT 3" Lift 250K+
    02 Honda Civic LX
    Looking for a 1990's Miata for an engine swap

  3. #3


    Thanks I will suggest that when I call the shop today. By the way, it is the upper contorl arm.

  4. #4


    boo on locktite that **** sucks on alignment parts, what i do is just rattle them a little with my impact and call it good never had one come back loose and that is all that counts

    2003 Z71 Silverado LS
    Access roll up cover
    Bed Rails
    Billet Grill insert
    Bed Rug
    CB with PA system
    Waiting to be installed
    Two 8in RF HX2 punch( would have 12s but they got stolen)

Similar Threads

  1. Replies: 7
    Last: 12-20-2010, 01:20 PM
  2. loose steering
    By 1990burb in forum GM Powertrain
    Replies: 6
    Last: 05-13-2010, 11:23 AM
  3. Replies: 5
    Last: 09-12-2009, 06:23 PM
  4. rear hub loose
    By jason2188 in forum Lifted & Offroad Suspension
    Replies: 1
    Last: 03-24-2009, 10:53 AM
  5. Loose missle
    By Cableguy in forum Photo & Video Gallery
    Replies: 3
    Last: 03-12-2007, 07:31 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts