This should be an easy one. My car had two wipers and arms in the trunk when I got it. The arms are about 1 inch different in length. If this is correct, which side to they go on? I am guessing the two sides are different based on some ads and comments I have seen. The parts store said the correct blade length is 18" but they sold me 17" blades due to installing J-shaped plastic parts that make the arm a bit longer. I am also wondering if the blades might be different in length based on how things are fitting on the car.

Thanks, it looks like rain here.

Gary

Look on the back of the wiper arm for an L or R. Left and right of course.

Chuck

Thanks so much! The arms do have an L and R, so the shorter arm goes on the driver's side. I think 18" blades should work best based on some measurements shown in my ancient Haynes Manual. Again, Thanks.