alternator mods
You can use a Denso alternator similar to this
More Information for PURE ENERGY 15686
It uses the same mopar electronic voltage regular. The one I listed is for a 1991 D-150 with a 5.2 engine. This one has two V-belt pulley, but any Denso alternator that looks like this has interchangeable pulleys. Just remove the center nut, slide the pulley off, install new pulley, tighten nut. There are different diameter, type of belts, number of ribs, etc. I use this type of alternator on all my Mopars.