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Possible Front Crank Seal Leak
I had the front crank seal replaced on my 05 four or five times before it stopped leaking. I had to take the truck to a second shop before it was done right. It is not easy to line it up and it was pinched. Never leaked again. I took the truck to a shop that worked mostly on Cummins trucks in farm country. The first misaligned seals had also scored the crank. They had to sleeve the crank to get the last seal to work. On my 14 i kept wiping the fluid off and it stopped and was probably assembly lube of sorts. On my 15 only one drop ever formed and i wiped it off and it never came back.
There is a second seal there also. I think it is the timing cover seal, if i am remembering the name correctly. That one requires many parts be removed to replace it. A friend of mine had his done and they had to even pull the cam to get it done. At your mileage i would not want the more difficult seal replaced just yet. There is a possibility it is still assembly lube. Good luck.
Ram 14 2500 RIP 14,700 Stock. 68RFE."The Lemon"
Ram 15 3500 Dually. Stock. Aisin. N Fab wheel to wheel. Weather Tech Mats. Big D Steering Box Brace.