This differential lock actuator bolt replaces your factory original.  Most often you can use your original but sometimes it is too corroded.   Fits 1986-1991 Syncros with differential...

This vacuum hose supplies vacuum to the differential lock actuator on Syncro Vanagons that are equipped with diff locks. Fits 1986-91 Syncro Vanagons. Sold and priced per meter in continuous lenghts...

If your Syncro came with a front differential from the factory then your van uses this plunger. This plunger actuates when you pull and rotate the differential knob to lock the front diff. These do...