All original except the seat, seatpost and stem. The seat is a newer one, the stem is correct, but not the same year.
Seatpost is cut and a wald. If interested youre welcome to come by and take a look. Or in the Ann Arbor area. The item "VINTAGE Sept 1966 SCHWINN RAMSHORN FASTBACK Local Pick Up Only" is in sale since Monday, July 8, 2019. This item is in the category "Collectibles\Transportation\Bicycles\Bicycle Parts".
The seller is "my-diagon-alley" and is located in Chelsea, Michigan. This item can't be shipped, the buyer must pick up the item.