Ever loosening exhaust nuts...

[95BlackTahoe]

Ok, I am stumped. I had new exhaust donuts installed and 6 new studs installed in the exhaust manifolds. Now the issue is the nuts that were installed keep backing off...and I'm under the truck at least once a month tightening them up. Never had a issue before they were replaced.

Does anyone have a solution for this? It really is driving me nuts, plus the exhausts falls enough to rattle on the chassis. For whatever reason the custom shop where I had everything done didn't use springs. I just want the nuts to stay put.

Thanks!

Shawn

 

[Gzes]

There should be a high temp thread locker. You got pics of yor setup?

 

[SunlitComet]

or self locking nuts.