1999 Eagle had a yuky exhaust leak, 1st appeared to be manifold gaskets, but here is the bigger leak:
I looked up parts on Cummins "Quickserve" using engine s/n and had local Cummins dealer verify and order manifolds, all new hardware and gaskets were around $950
Once I get job complete I'll post part numbers if anyone's interested. Not a terrible bad job, had it apart in a few hours