87 chevy doors on my 74, power window n locks questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

frog210 · 07-24-2012, 12:58 PM

hey guys i have a few questions
I just got my hands on 2 87 chevy doors power windows and locks($100)
im going to be putting them on my 74 chevy
i hav heard that i will need to run a 10gauge wire from the battery to a 30a fuse then to the harness?
ive been searching for like 3 days
Is their a way to try the window motor and locks without the wiring harness
(i got to go to find one), and without taking the motor out of the door?

Could i just put the door infront of my truck run a 10g wire from the battery with a 30a fuse?

Or is there a how to take the motor and solenoid out?
ive been searching here but i might not have been wording it right
If i do take it out what would be the best way to leave the window in their when i take the motor out? tape wire

RandyP · 07-24-2012, 01:42 PM

I use a power probe all the time to run windows up and down that are removed from a vehicle. Same would apply to working a lock motor. Just have to have the harness in the door.

frog210 · 07-24-2012, 01:46 PM

okay i got it yay
sofar just checked the passenger door cus i got to get ready for work
the way i did it was where the window switch is there are 5 wires
pink
blue/brown(thick wire)(<---this wire)
blue/white
blue(thick wire)(<---this wire)
yellowish brownish

i just got 2 pieces of wire ran one to the positive with fuse and one from the negative post
just ran them to the motor wires on the switch and it rolled down THANK YOU LORD
reversed the polarity and they rolled up THANK YOU GOD AGAIN
Thanks RandyP
I need to get me one of those, how much it cost you?

Now how do i check the power locks? lol

frog210 · 07-25-2012, 07:56 PM

Have another question

Im going to go to a junk yard to try and get the harness for the doors power window/lock
are they all interchangeable the harnesses
I got 87 doors
so will the wiring harness off a 78,79,80,81,82,83,84,85,86,87 chevy work?

WarBeard · 07-25-2012, 08:01 PM

IMO pretty much any harness you can get will need to be wired anyways since there was no power windows in '74. So I would say get a harness that plugs right into your doors Close to '87 as possible. then you will need to wire it under the dash.

frog210 · 07-25-2012, 08:15 PM

Yea I know I will have to wire a 10gaige wire from the battery to a 30a fuse, and to the ignition switch, but I was mainly asking if the harness that goes to the doors like the window switches, power switches, window motor and lock soelnoid be the same,
I know I will have to modify the harness to work on the 74, but will all the wires, connections be the same inside the door?
Posted via Mobile Device

07-24-2012, 12:58 PM	#1
frog210 Registered User Join Date: Mar 2012 Location: San Antonio, Tx Posts: 784	87 chevy doors on my 74, power window n locks questions hey guys i have a few questions I just got my hands on 2 87 chevy doors power windows and locks($100) im going to be putting them on my 74 chevy i hav heard that i will need to run a 10gauge wire from the battery to a 30a fuse then to the harness? ive been searching for like 3 days Is their a way to try the window motor and locks without the wiring harness (i got to go to find one), and without taking the motor out of the door? Could i just put the door infront of my truck run a 10g wire from the battery with a 30a fuse? Or is there a how to take the motor and solenoid out? ive been searching here but i might not have been wording it right If i do take it out what would be the best way to leave the window in their when i take the motor out? tape wire

07-24-2012, 01:42 PM	#2
RandyP Getting Old; Going Broke Join Date: Apr 2010 Location: Owasso OK Posts: 2,764	Re: 87 chevy doors on my 74, power window n locks questions I use a power probe all the time to run windows up and down that are removed from a vehicle. Same would apply to working a lock motor. Just have to have the harness in the door. __________________ *Why is every used 350 sbc out of a corvette?* There's only two things that excite a man, expensive toys and real expensive toys. *VEGETARIAN: That's an old Indian word meaning "I don't hunt so good."* When the going gets tough, switch to power tools.

07-24-2012, 01:46 PM	#3
frog210 Registered User Join Date: Mar 2012 Location: San Antonio, Tx Posts: 784	Re: 87 chevy doors on my 74, power window n locks questions okay i got it yay sofar just checked the passenger door cus i got to get ready for work the way i did it was where the window switch is there are 5 wires pink blue/brown(thick wire)(<---this wire) blue/white blue(thick wire)(<---this wire) yellowish brownish i just got 2 pieces of wire ran one to the positive with fuse and one from the negative post just ran them to the motor wires on the switch and it rolled down THANK YOU LORD reversed the polarity and they rolled up THANK YOU GOD AGAIN Thanks RandyP I need to get me one of those, how much it cost you? Now how do i check the power locks? lol

07-25-2012, 07:56 PM	#4
frog210 Registered User Join Date: Mar 2012 Location: San Antonio, Tx Posts: 784	Re: 87 chevy doors on my 74, power window n locks questions Have another question Im going to go to a junk yard to try and get the harness for the doors power window/lock are they all interchangeable the harnesses I got 87 doors so will the wiring harness off a 78,79,80,81,82,83,84,85,86,87 chevy work?

07-25-2012, 08:01 PM	#5
WarBeard Registered User Join Date: Jul 2008 Location: Show low,az Posts: 808	Re: 87 chevy doors on my 74, power window n locks questions IMO pretty much any harness you can get will need to be wired anyways since there was no power windows in '74. So I would say get a harness that plugs right into your doors Close to '87 as possible. then you will need to wire it under the dash. __________________ 1978 C10 Silverado Big 10 350/350.. play toy 1990 V1500 Suburban 350/700r4..Daily driver 1987 K10 Silverado 383/400.. Wife's rig WRECKED! 1989 V2500 Suburban 350/400.. SOLD! 1974 C10 Custom10 LWB 350/350.. SOLD! 1974 C10 Custom10 SWB 350/400.. SOLD! 1999 Silverado Z71 LS1.. Wife's rig WRECKED! On the hunt for a new project....... I'm a Chevy guy.....I'm just not a "NEW" Chevy guy.

07-25-2012, 08:15 PM	#6
frog210 Registered User Join Date: Mar 2012 Location: San Antonio, Tx Posts: 784	Re: 87 chevy doors on my 74, power window n locks questions Yea I know I will have to wire a 10gaige wire from the battery to a 30a fuse, and to the ignition switch, but I was mainly asking if the harness that goes to the doors like the window switches, power switches, window motor and lock soelnoid be the same, I know I will have to modify the harness to work on the 74, but will all the wires, connections be the same inside the door? Posted via Mobile Device



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