I'm looking at a Lawson Industries 77581 muffler with dual in/out 2.25" The drivetrain and cats came from a later 98 with the back of the cats separate where one has the slip joint and clamp and the other has the tapered bolt together flange.
Can't find a 2.25" stub pipe to fit that flange for the 5.0, only 2.0" ones for the V6. I need to do some custom work to fit the two pipes between cats and muffler over the welded in round crossmember on the ST that the Explorer/Mounty doesn't have.
This would be easier with the flat flange early 98 and older cats, just saw the pipes off to stubs on the back flange half then weld new pipe on.