I get a popping sound from the roof area on each side of the third brake light. Kinda sounds like metal expansion. Anyone else and if so what did you do to stop it?
I did it with my 18 Ram and it dropped the temps by 20*, thats huge.I was just wondering if anyone had tried it with the GMC. The Ram temps went from 205 to 185 oil and water , trans hovered 180 b4 and after.