looks to me like it's just the body lift. the springs don't even look like they've been re-arched. don't know how it drives, but you might want to check the pumpkins and see what gears you're running for tires that large. the 4.3 should have the power needed, but the right gears will make a big difference.
1966 CJ5A, mods are coming
1966 Wagoneer, bone stock