What is the ford f350 wiper blade size?

The size of Your Ford F-350's wiper blades depends on the model year, and since that information is missing from Your question, I'll do my best to answer across all model years. FroM2000 until 2008, Ford fitted the F-350 with a 20 inch driver's side windshield wiper blade, and a 20 inch passenger's side wiper blade. Then, beginning in 2009 and until current model years, they lengthened the requirement just a bit. You'll now use 22 inch wiper blades on both the driver's and passenger's side. Swapping these out is a breeze, though many major automotive stores will do it for You with purchase. Still, if You buy somewhere online and need to do the job Yourself, it shouldn't take You more than 10 or 15 minutes at most.