450C - LOADER, CRAWLER 60 TRACKS, SHOES AND FRAME Parts group 60 TRACKS, SHOES AND FRAME 60 TRACKS, SHOES AND FRAME . TRACK CHAIN (WITH HEADED MASTER PIN) (SERIAL NO. -216302) [01I07] UNSEALED CHAIN, 1/2" WITH MASTER PIN AND NON-STRUTTED LINKS (37) (SERIAL NO. -216302) [01I08] SEALED CHAIN, 1/2" WITH MASTER PIN AND NON-STRUTTED LINKS (37L) (SERIAL NO. 216303- ) [01I10] REPLACEMENT SEALED CHAIN, 1/2" WITH MASTER PIN AND NON-STRUTTED LINK )37L) [01I12] REPLACEMENT SEALED CHAIN 9/16", WITH MASTER PIN NON-STRUTTED LINKS STD (37L) [01I14] LUBRICATED CHAIN 1/2", WITH NON-STRUTTED LINKS (STD (37L) [01I16] LUBRICATED CHAIN 1/2", WITH NON-STRUTTED LINKS STD (36L) AND LT (39L) [01I18] REPLACEMENT LUBRICATED CHAIN 9/16", WITH NON-STRUTTED LINKS STD (37L) [01I20] REPLACEMENT LUBRICATED CHAIN 9/16", WITH NON-STRUTTED LINKS STD (37L) [01I22] TRACK ROLLER AND SPROCKET [01I24] LOADER TRACK FRAME [01I25] FRONT TRACK IDLER [01J01] FRONT TRACK IDLER [01J02] FRONT IDLER SHIELDS [01J03] TRACK IDLER SPRING AND COVER [01J04] HYDRAULIC TRACK TENSION ADJUSTER [01J04] REPLACEMENT HYDRAULIC TRACK TENSION ADJUSTER [01J05] UPPER TRACK CARRIER ROLLER [01J06]