Kroil is the best stuff ever invented. It�s amazing, when I did my headers put that on every bolt and nut, if they were still stubborn I put more on and waited with in 10 min that stuff worked.

My father and I are working a 1942 Divco milk truck and it even loosens up rusted out nuts and bolts on that thing like magic.

98.5 Black SVT with 34k miles Build #5683 Born on 4\15\1998 WR Headers GMK CAI Blaupunkt system fiberglass tweeter pods L.E.D. tail lights in the works