So I called Under Cover Fab today to ask about their engine/oil pan skid for YJ's, as it says they offer one for a 2.5 but the $.0 one is under development.
So when I called, he said that he has not developed one yet as he has not had a 6 cyl YJ to work on lately. I'm shouting out to the YJ community here on JeepForum to say that if anyone lives near Dpthan, AL and is also interested in a 4.0 YJ skid, consider giving a call and asking what he would need to measure on up! That's all!!