924 (80-88, non Turbo), 944 (82-91) Thrust ring for limited slip differential.
differential
Taper roller bearing 915 differential gearbox 911 (65-89) 914 (70-76) 924 (76-85) 928 (83-95) 959 (87-88) 964 (89-94) 993 (94-98)
924S (86-88), 944 (82-91) Sealing ring for lower balance shaft (right side).
924S (86-88), 944 (82-91) Sealing ring for upper balance shaft (left side), also used for the camshafts on the 928 (78-94), 944 (82-91) and 968 (92-95) but with a few exceptions.