Flexplate is not fits the torque converter

I have an engine 5.9L from Jeep Grand Cherokee 1998. In summit it's shown as:

Engine / JEEP
5.9L/360
Mopar small block Magnum

Looks like I'm back to basics :) is it Magnum or not? I don't want to buy the third wrong flexplate :)
LA, MAgnum, Gen 3 Hemi in that order. The Magnums were built from about 1992-2003 when the new Hemi started production.