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Old 07-03-2024, 05:03 PM   #1
gafiredog
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Join Date: May 2008
Location: metro Atlanta, Ga.
Posts: 196
windshield wiper motor

are the windshield wiper motors the same on a 1978 C-30, and a 1986 C-30 ? Will they interchange without any problems? Thanks.
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1975 c-10 stepper
1978 single cab dually
1987 crewcab dually
1986 crewcab single wheel
1948 anglia- (the dixie twister super gas)
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Old 07-03-2024, 08:17 PM   #2
ray_mcavoy
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Join Date: Nov 2009
Location: Sherman, ME
Posts: 2,361
Re: windshield wiper motor

Yes, the wiper motors should be the same.

The only difference you'll encounter is the windshield washer pump. Sometime around 1985 or so, they changed from a mechanical pump mounted on (and driven by) the wiper motor to an electric pump mounted on the fluid reservoir.

If using the 78 wiper motor in the 86, you can simply leave the mechanical washer pump unused or remove it if desired. If using the 86 motor in the 78, you could transfer the mechanical pump over to the 86 motor, or swap the washer fluid reservoir and do some minor re-wiring to use the electric pump in the 78.
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Old 07-16-2024, 10:50 PM   #3
gafiredog
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Location: metro Atlanta, Ga.
Posts: 196
Re: windshield wiper motor

thanks for the help
__________________
Art
1975 c-10 stepper
1978 single cab dually
1987 crewcab dually
1986 crewcab single wheel
1948 anglia- (the dixie twister super gas)
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