93-02 Windshield wiper motor questions
 

I've got a '98 Z/28, and my wipers don't work right anymore. The arms no longer pop-up when you turn on, though there's a delay like it's trying to. The arms also SLAM down against the bump stops every time they cycle. Taken it apart to look at it, and the two rubber-mount things on the tabs of the motor that go into the back wall are really chewed up.

Where is the best place to pickup a new or refurb motor, that includes two new rubber mounts for the rear tabs? Everywhere I've looked only include that one single front-circular rubber mount thing, not the other two.

Should I just buy some blocks of hard rubber, and carve them out to shape?