4x4 or 4x2? If 4x2, coil spring or torsion bar? It all makes abig difference.
For the torsion bar suspension, the explorer 302 steel or aluminum pan works well. Explorer steel works on the coil spring if you raise engine a bit. Mustang double hump may work as well.
As for "conversion parts", not of the "kit" stuff works for the 98+ ranger. Best to use all explorer 302 parts.