U-bolt grief

[gator70]

I had my dealer re-torque my u-bolts at 30000kms. Under warranty, no issue. I took my truck in today at 70000km for one of its free oil changes and for giggles, last night i grabbed a torque wrench (set at 50#) and all of the nuts were loose again.

I mentioned it to the service advisor, the tech checked them and, yup, they are loose. Thanks Captain obvious. My dealer will not honour their fix at 30k saying that I should have noticed the issue earlier. They say that the fix is $150 but will do it for $75. But if it happens again they will warranty their work.

So, being the simple civil servant that I am, i ask why they will warranty it next time and not this time. The song and dance routine went on for about 15 minutes. finally i just gave in and agreed to pay.

 

Really long story short, if you have had the u-bolts done, check them again. And, complain profusely about vibration and clunking.

 

[dorkweed]

IMNTBHO; the shackle threads or the nut threads are suspect here. Go to a "real" spring shop!!! They'll torque everything down almost to where you cannot break them freee!!!

[SouthernSilveradoGuy85]

From what I read on here, the TQ spec is actually 79 ft lbs. Just TQ them yourself since you say you have a TQ wrench. I TQed mine to 79 when I first read about the nuts being loose. I believe I TQed them 2 years ago and still fine.

[Crime2]

I have a 2016 Sierra 2WD Crew Cab with about 1000 miles on it. Just checked mine and they not at 79 ft lbs. Just TQ'ed them down and went for a ride. The clunk I was getting from the rear is now gone.

 

Thanks for the good info!!!

 

 

Sent from my iPhone using Tapatalk

[pm26]

If you worry about torqued nuts coming loose, use some Blue Loktite on the threads. It will keep them from loosening.