I know Bart answered about Merlin, but thought I'd add a little more info He's been there 12 years and knows a ton of info on Zu stuff.
Merlin usually answers that number (800-727-8066), but if not, just ask for him by name in the Parts Dept. I've found that number often goes to voice mail..which means they're busy...don't bother leaving a message, better to keep calling until you reach him live.
Also, he doesn't really like to use email...just call until you get him live.
Here's St. Charles online parts website...it shows you the same prices he gives us including the free shipping:
http://www.stcharlesautoparts.com/
Merlin's yer man!![]()