The driver side exhaust manifold cracked. Got another manifold and gaskets. The front stud stayed in and removed the nut. The next 3 were bolts, which came out. The next was a stud that came out. The last one was the long special bolt that came out. Replaced the 3 old bolts with stainless steel bolts and lock washers. Replaced the stud that came out with a new steel stud and reused the long special bolt. Used ultra copper high temp RTV silicone gasket maker on the bolts and the stud that was replaced. Cleaned all the treads. I have a leak. Did I use the wrong silicone.