Aftermarket Wiper Fillers heads up
Thanks for head up. According to the 72 Parts Manual, all A-bodies used the same wiper arm. That surprised me as the 23, 29, & 41 body codes do not use the same windshield. That said, it could have been a Trico or an Anco arm. It was the same part number regardless of body style. I stock Michelin and RainX branded refills. I'll check back later and let you know if the 15s of those brands are a full 15" end-to-end.
Update 2300 CDT
Don't stock 15" blades. I measured both brands 16" that I do stock. Both ran short.
Potential work around is to install a 16" blade using locking lug on the end of the arm farthest from the wiper arm pivot.