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Discussion Starter · #1 ·
I've got an easy one, but to double check.
I've got a 71 guage harness with a 3-wire connector for the wiper switch mounted in a 72 guage dash with a 4-prong switch. looking at 72 schematic, the fourth prong is a ground. can i use the existing switch? I've searched previous posts but couldn't find the answer.

Thanks
Rodney M
72 convert
 

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Not sure if the connector will mate with that switch. If it does somehow the 4th pin has to be grounded for the wipers to work.
 

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Discussion Starter · #3 ·
connector fits,
but not sure if wires correspond to correct lug on switch. anybody got the correct color code for a 71 wire harness wiper and for a 72 wiper switch?
Thanks
Rodney
 

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This pic shows the correct orentation of the 72 switch connector on a 69-71 switch. The lower black wire is the switch ground, the other three are the same for all years. The switch needs to be grounded, a wire from the metal cluster back to one the switch mounting screws or clip the lower black wire from the connector, crimp on a ring lug and attach under a mounting screw.
 

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Discussion Starter · #5 ·
THanks Elree
I reviewed the 72 schematic. noticed the switch
had no ground. tied a ground wire over to the
emergency brake ground.

Rodney M
72 convert
 
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