Windshield wipers can be difficult to find for these old trucks, and can be relatively expensive. I got one of the largest sets of wipers I could find... I think a 28 inch pair... for about $6. I cut the end of the platic spline off and slid the rubber squeegee off. I then cut that to the length of my original and slid it back on the original wiper arm. I was able to replace both wipers with only 1 of the new ones and will use the other as a spare.
This also worked on my 74 MG midget that had the tripple 9 inch wiper blade system, and my 2004 Wrangler when I got stuck in an unexpected storm and had to get wipers from the nearest gas station. They never have the smaller sizes.
