Original 1966 Jeep Combined Chassis and Body Parts List. This Dealer Parts Book covers Model FJ-6A Fleetvan for U.S. Post Office use with Post Office Vehicle Serial Numbers 520001 thru 523066. These are what the Dealer used to order Factory Replacement Parts for these Models. It has Part Numbers, Description, Quantity and a few Illustrations for these Parts. It is in good used condition with minor wear and soiling [see photos].