2003 Dodge 2500 Hemi towing improvement advice

The mods were not done to a hemi but the logic holds regardless of the engine or manufacturer.

Do you have a shop in Tucson that maybe specializes in mopar that you trust? I would speak with them as they will have seen more first hand. They may also have other ideas on how to help.

Don't know about the OD lock out being affected by the programmer but I am sure that if the trans is electronically controlled that one of the manufacturers has addressed or will at least look into it for you.