After you price rebuilt cruise amps and acuators, you may want to think about this option. http://www.peachparts.com/shopforum/showthread.php?t=219993 Works just as well as the original setup, and if you're handy enough to change your own oil, you should be able to do the install in a few hours.

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Mike
1983 Mercedes-Benz 300SD 270K
1960 Ford F250 62K
1990 Mazda Miata 156k

The thing is Bob, it's not that I'm lazy, it's that I just don't care.