1. Backing - Turn away from the obsticale you want to avoid. 2. Backing - Turn toward the direction you want the trailer to go. 3. Backing - Right is left and left is right (turn right trailer goes left; turn left trailer goes right). 4. Almost everything you're supposed to check requires inspection for the same three things: ensure it's not cracked, damaged, or loose. Cracked, Damaged, or Loose. CDL. 5. Tires go by an ABC mnemonic: abrasions, bulges/bumps, or cuts. Have any to share? CDL/Backing?