450B - BULLDOZER 70 TRACKS AND SHOES Parts group 70 TRACKS AND SHOES 70 TRACKS AND SHOES . TRACK CHAIN (WITH HEADED MASTER PIN) [I11] REPLACEMENT TRACK CHAIN (COUNTERBORE WITH HEADED MASTER PIN) [I12] REPLACEMENT TRACK CHAIN (COUNTERBORE WITH HEADED MASTER PIN) [I13] REPLACEMENT TRACK CHAIN (COUNTERBORE WITH HEADLESS MASTER PIN) [I14] REPLACEMENT TRACK CHAIN (COUNTERBORE WITH HEADLESS MASTER PIN) [I15] LUBRICATED TRACK CHAIN [I16] TRACK SHOES [I17] TRACK ROLLER AND SPROCKET [I18] LOADER TRACK FRAME [I19] DOZER TRACK FRAME [I20] FRONT TRACK IDLER [I21] FRONT TRACK IDLER [I22] FRONT IDLER SHIELDS [I23] TRACK IDLER SPRING AND COVER [I24] HYDRAULIC TRACK TENSION ADJUSTER [I24] REPLACEMENT HYDRAULIC TRACK TENSION ADJUSTER [I25] UPPER TRACK CARRIER ROLLER ASSEMBLY [J01]