Removing wiper blades

[LethalSHO]

Is there a trick to getting these stupid wiper blades off?? geez... (Not the whole arm)
(for my 1990 mtx)

 

[luigisho]

Push the tab in and pull the wiper cartridge down?

 

[Mike Spataro]

wiper blades

I just changed mine on an 89 and assume yours are the same. Mine has a pin at 90 degrees to the wiper arm. In the center of the blade on top is a small space to put a small screw driver blade. Press down on the screw driver and it releases a spring clip and the wiper blade releases.

Takes some practice but the second wiper will be easier.