[SS Tim]

Richard, Don't have time to go into depth on this today, but if you have some time you might want to do a "seatbelt color" search. It is possible that the black belts are factory but the A/C balls generally key. Are you sure it is a center set and not inners for shoulder harness? What color is the console? The bottom might give us a true "as delivered" indication. Also can you tell what color the dash pad and column are originally. On the headliner, they probably pulled the original and wrapped it with the diamond tuck. At the time this material was available roll form. It was probably glued to the old headliner and then glue back into the truck. Assembly manual shows the stock installation using a large full span "X" of adhesive to secure it. However it could also have been done in place with the new material being glued on and trimmed or wrapped around the edge. Look very closely maybe pull a corner and take a peek. It it likely that the headliner is toast though. The assembly date was on the blue door sticker in the upper right corner. If it is still there you will see the month and year. '71 part dates are expected. Unlike modern prodution "just in time" vendor part stocking numbers, they tended to lead production somewhat from weeks to on very low volume items a year.