Because the wiper blades are symmetrical (same size) on a Jeep Wrangler, you could use two different brands in an emergency. In this case, make sure to put the new one on the driver’s side so your visibility is at its best. As a general rule, you should replace both wiper blades at the same time. By doing so, you can ensure that both are in similar condition and wear out at about the same rate. Furthermore, using one older blade or lesser brand with a newer blade or better brand will hinder your visibility. So unless you have to change one in a pinch, use the same brand of wiper blade and replace both at the same time.