I must admit, in almost 40 years I didn't notice the BIG error in the Service bulletins until the last year. I would have provided the same info as Brent. They listed Tudor and Coupe but that glass was only used on the door type used on the Closed Cab. The part number tells it all as it's a Panel Delivery number (lowest applicable body type number).
The second one down on the far right is properly labeled and does also apply to the 55-B and 82-B. The Service Bulletins say 26-13/16" x 16-3/8". I sure Hope the Bulletins are more accurate than Mary Moline as quoted by Don Turley. The part numbers do cross-reference properly.
With that said Mr. Emerick, instead of a short abrupt reply to an effort to help like "Wrong" you may consider something like "There must be something wrong here as my window openings are larger than that!" That is of course assuming you would like to encourage help and support.