87 chevy doors on my 74, power window n locks questions

[frog210]

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]

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]

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]

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]

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]

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?
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