Hi fellas. Maybe someone out there will know where I can find the blades to fit the older style rear wiper arm for my daughter's '83 wagon. It is a bit narrower arm and goes straight into the wiper blade fitting snugly. It is not the type with the curve or hook on the end like the newer ones. This one has a nub that clicks into place once it is in. Hard to find for me. Even though I have ordered from parts houses they keep sending me the blade that fits the newer type arm. Any help would be appreciated. Thanks.