Transmission
924S Tiptronic (86-88), 944 Tiptronic (82-89) Damping plate between flywheel and torque tube.
Clutch operating cylinder 924Turbo/GT (76-84), 924S (86-88), 944 (82-91)
924 (80-88, non Turbo), 944 (82-91) Thrust ring for limited slip differential.
924 (76-88), 944 (82-91), 968 (92-95) Rear axle support mount
Four point bearing mainshaft gearbox. 911 (72-86, 915 gearbox), 911 Turbo (75-89), All 924 (76-79), 924 Turbo/GT (80-85)
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)