Exhaust Leak repair

[jmac]

I have identified a large exhaust leak before the flex joint on my 2008 Sierra Denali.  Does anyone know if there is a gasket as GM parts drawing does not indicate it?  Also if there is not a gasket how can I repair the flange leak?  I have attached pictures.

 

Thanks

 

[volfan84]

did you take it off and put it back on?  I've put several aftermarket exhausts on with aftermarket y pipes and I never had that issue.  I would hate to do it, but gasket maker may work?

[jmac]

Fixed it.  Removed cleaned all the buildup and no more leak.

[volfan84]

awesome