2023 CAT 301.8-05A , Online Owner's Manual , TRACK SHOES (PADS) CONDITION: 100 %, UNDERCARRIAGE CARRIER ROLLERS: 100 %, UNDERCARRIAGE IDLERS: 100 %, UNDERCARRIAGE SPROCKETS: 100 %, UNDERCARRIAGE TRACK BUSHINGS: 100 %, UNDERCARRIAGE TRACK LINKS: 100 %, UNDERCARRIAGE TRACK ROLLERS: 100 %,