They're 12" long. Couldn't find any locally and Dennis Carpenter only has 'em for '55-'60 Fords. https://www.dennis-carpenter.com/trucks/exterior/windshield-wipers/b2t-17528-a-wiper-blade-12-inch
I just take what ever length blades I have and cut them down to the length I need and put them in the old chrome part of blade. Just replace the old rubber with the cut off new rubber
Found some at NAPA in their "cl***ic" line but they told me they were discontinued. Had a hell of a time with the wiper arms (not blades), all the replacements I bought were so weak they wouldn't hold the blade down against the windshield at anything above 35mph. Tried putting stiffer springs on the reproduction arms and the arm bent/bowed to the point of not working. Finally found some Trico NOS arms and they work great!
I got mine from Amazon https://www.amazon.com/dp/B07116CWT...&ref_=cm_sw_r_em_ud_dp_VWZQ6YKWYJ2SNT1AGGK9_1
That's a good lead! I think I found what I need though. My local Advanced Auto Parts has 'em at a good price..... https://shop.advanceautoparts.com/p...lade-33-122/5070449-P?searchTerm=trico+33-122
I got my 12” chrome replacement wipers from Danchuk 55-57 Chevrolet suppliers a few years ago. Ford didn’t make wipers or arms Trico and Anco did for ALL manufacturers. The arms on my 56 have the small rectangle ends with a dot to hold on the blades. I wanted ones that looked stock and these did. Soak the new rubber with 303 Protectorant and they will last indefinitely.