I am missing 2 exhaust manifold bolts on my jeep. It is a 1996 2.5 Cherokee. I just want to know if all of the bolts are supposed to be the same or not. The bolt closest to the cab is different from my others, but I'm not sure if it is an original or not. I haven't been able to match that bolt or my other bolts into the bolt hole closest to the front. My main concern is getting the frontmost bolt replaced.