New tow vehicle...6.4 hemi or Diesel?

Now, the old Getrag speed pulling in OD is a NO NO!!
Agree 100%
My 90 i had a GearVendor overdrive so i pulled in 4th(direct drive) and GV was the over. 5th became double over on the flat lands. without the GV, max speed was 65 mph, foot to the floor riding on the Governor for hours on end.