I thought I should start this topic with a good question.

I have a 1980 Chevy Blazer with intermittent windshield wipers.
The problem is that one of the components on the wiper switch circuit board is fried and the wipers are now on all the time.
I know which part it is but when it shorted out it melted or burned off its markings
[Linked Image from i18.photobucket.com] [Linked Image from i18.photobucket.com]
This piece can be replaced quite easily but I've been told that there are over 1000 electrical components that look on the outside the same but all do different things.

My question is this ... If anyone has a 1979 - 1981 Blazer, Jimmy, Suburban or truck with intermittent wipers could you pull out your switch and see if you can find a part # on the piece.
I've been told that those components run from $0.50 to $20.00 where as the whole wiring harness (if it was still available from the factory) would be upwards of $220.00 US.

Any help would be greatly appreciated.