@gilkthegreat: Thought it was lifter tick? Nope. Broken exhaust bolts on this 6.0 LS. Fixed it with a Dorman kit and slapped the header back on @Dorman Products #60Tick #BrokenBoltFix #GMCSierra2500HD #DormanProducts #MechanicTok #TruckTok #LSTech #TruckFixes #AutoRepair