The front strut top is an often neglected suspension component. Not only does it absorb some of the strut motion, it has to rotate with the strut as the car is steered.
This is a new Toyota part, we'll stock them as long as Toyota keeps making them!
85/86 mounts had 3 studs and are no longer available; 87-89 mounts have 4 studs. If you have an 85/86, you can use these mounts but will have to press out one of the studs or drill an extra hole in your strut tower.