Last week I decided to replace the worn out wiper blades on my RV. Wally World didn't have any TV8-32 blades so I went next door to the local NAPA dealer. He did a crossmatch and sold me a set of 32" heavy duty truck (RV) wiper blades.
Got home and found wipers too small for my 24.1 J-hooks. Took them back and the great NAPA guy did some "down and dirty" looking and discovered I needed some 12x4 J-Hook style wipers. Ordered a set and they came in this AM.
Happy to report NAPA 6-3255 Heavy Duty wiper blades fit out of the box. And even happier to report though they cost $6.50 more ($61.00/$54.50) than "standard fit" the NAPA-guy didn't charge me the extra.