Along with my previous post about a body swap for my YJ, what I'm trying to do is upgrade my 4cyl to a 4.0 or 4.2 6cyl. I have a 5 speed AX-15 tranny I just installed new a few months ago that I want to keep. If I buy a used jeep (YJ or Cherokee) with a 6 cyl automatic, will my bell housing fit the 6 cyl? What tranny comes on a Cherokee with a manual 5 spd? Or is it even available with a 5 spd? Does the 6 cyl use the same AX-15 tranny? Which engine would you recommend, the 4.0 or 4.2? I've heard of vacuum issues and idling problems related to the
4.2. I've done some "googling" but haven't really found much information.All help is greatly appreciated!! Marty