The official parts database suggests the following arm-to-blade connector types:
Note that the arm design is only for the arm, not the blade. The only difference should be between the “hook” and “pin” connector types. The “hook” connector is much easier to use.
Bosch Icons are among the best blades, though Bosch is good in general. However, like any contour blade, keep in mind that they require considerable pressure against the windshield to properly press against it at the center. If your wiper arms are not properly installed (they are difficult to pop back onto the rotor completely) you may need to carefully bend them in to apply enough pressure. Most traditional-style blades do not exhibit this problem, but may not properly push against the windshield along the edges (instead of the center), especially when driving at highway speeds.
One of the most common issues on Panthers is “wacky wipers”, which is when the wipers either activate on their own or, worse, fail to activate at all. This almost always signals a failed wiper control module (WCM). For 98-02, the WCM is located under the glovebox. For 03+, the WCM is built into the wiper motor. In any year, if the wipers don’t work at all, make sure to check the fuse first.
No matter where the WCM is located, “wacky wipers” is almost always caused by moisture getting into the wiper motor. The motor is mounted to the underside of the wiper housing. As rain flows down from the windshield, it collects in this housing and, ideally, drains out of a flap near the bottom of the housing. But as time goes on, leaves and junk collects in that flap and clogs it up, which causes water to pool up in the housing. As the water pools up, it leaks into the motor, which is exposed to the pooled water through the mounting hole. As water gets in, it either shorts out the motor - which causes the WCM to fail - or simply damages the WCM directly in 03+ modules.
The fix is to replace the wiper motor. For 95-02, use Ford part F7AZ-17508-AA (a.k.a. Motorcraft WM837). For 03-11, use Ford part 8W7Z-17508-A (a.k.a. Motorcraft WM734). Always get the Motorcraft part, preferably brand new. Make sure to get the proper motor for your year range. Once the motor is replaced, coat the mounting hole with silicone sealant - just seal up that whole area up to prevent any moisture ingress. If that does not solve the problem, for 98-02, replace the WCM; otherwise, or if the WCM is replaced, try replacing the wiper control stalk on the steering column, which may be worn down. Otherwise, you have a wiring problem somewhere.
As preventative maintenance, take apart the housing and clean out that drain flap. If you haven’t, add the silicone sealant. This will help avoid that problem and will avoid blowing a good bit of money on yet another motor.