The following are the parts needed to make the conversion from the diaphram lift pump to a piston lift pump.
Part numbers are Cummins numbers
Pump - 3036320
1 fuel tube from pump to fuel filter -3914753
2 gaskets - 3939258
2 sealing washers for banjo bolt at filter - 3963983
1 spacer to move pump out 1/4" - 3914284
2 new pump mounting screws - 3900631
I got all my stuff from Ponci Diesel - Thanks Ponci!