Yes on skid plate. If you can see in pics my trans/t case skid plate is off. My buddies and i are working up a skid plate that will cover that entire area frame rail to rail. Im going to add an auxiliary trans cooler on the adjacent fram rail. 4x4in out in the sierra nevada mountians here in CA I beat my truck hard on trails going out camping and sometimes work. The faster you go the smoother the ride! Im very active out there and have never had any problems. Heres some more pics to show how nice it tucks up close to the cross member like KATOOM was saying.
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Anyways....back to the matter at hand.
Im very interested in finding out where you losing prime. My moneys on the can. My can would never seal up correctly even with a new oring after changing fuel filter. The cap is plastic and i think get warped from many heat cycles. Theres also a fuel heater plug on that thing that can be finicky.
I also was losing prime from a raptor lift pump mounting bolt that was too long and slightly cracking in to the pump housing on the inside. Again there was no sign of fuel leakage. I only noticed when i cracked the bolt loose and then fuel came out.