Thanks everyone!
Moparleo, the A518 conversion wasn't too terrible. I know there are others out there that have kits do this but after looking and measuring my rig, I decided I wanted to do it myself. My biggest concern was if their kit allowed the proper drive shaft angles. Maybe they work ok, don't know. For me, I had to massage the tranny tunnel to allow clearance in a few spots, cut and box in the welded in cross member and make a new tranny mount. I have a shop with a vehicle lift, CNC plasma cutter and lots of tools so it wasn't much of an issue with me. Oh, and the speedo cable was too short to work without kinking the cable so I had a new one made here in SoCal. I think it was $60 or so. Not too terrible. I have a light on the dash that tells me when the OD kicks in but I need to find a lighted push button switch to disengage it when I don't want it. Someday....