This is the Vacuum Actuator that is mounted on either the side of the transmission or the front differential of a Syncro Vanagon. It moves the locker mechanism. Blue/Black in color.
Syncro Transmission Output Shaft Bearing
Shift Bushing for 84-91 Vanagon center or rear
Shift Linkage Boot 86-91
Drive Shaft Flange Seal on Syncro Transmission
Bellows for 5-speed Shifter from 9/85-1991
Viscous Coupling Syncro