Last week my truck had extreme oil pressure loss. With that there was a coat of oil everywhere on the underside of the truck, I thought the worst. As it turned out there was fuel in my oil, we thought the culprit was my lift pump($34 from local CNH dealership). After replacing it I drained the oil. As it was draining I primed everything up, and shortly after a heard a stream out of the drain plug, of nothing but Diesel fuel. Pulled the timing cover (I have to kill the KDP anyway) pumped the lever on my lift pump and fuel is streaming out the front seal on the I/P... Is it an easy fix? Cost?