Windows and Locks installation for an 85 Ranger - By Budro
- Parts List from a donor 83-88 Ranger or Bronco II:
- 1. Power Window Regulators
2. Power Door Lock Actuators or aftermarket (I used Harada's worked
3. Wiring harnesses for both doors.
4. Wiring harness in front of radiator (This harness feeds power to
the headlights, blinkers, parking lights, horn, and power back to the
5. Power Window/Locks door panels. (Or you can just cut your old ones
to house the switches)
6. Power Windows/Locks Switches.
7. 20 Amp Circuit Breaker.
8. Rivets, Di-electric Grease, Vaseline, Zip Ties, Masking Tape, Drill
with ¼" bit, Dremel Tool, 7mm deep well , 8mm, and 10mm sockets,
Various screwdrivers, electric tape, Plastic wire molding, and a
plastic clip remover for the door panels.
- Here is a copy of
the wiring diagram for 87 Ranger and Bronco II
- Start off my disconnecting the battery.
- Drivers & Passenger Side Door Panel Removal:
1. Remove the armrest by removing the 3 bolts underneath with a 7mm
deep well socket.
2. Remove the window crank by removing the Phillips head screw from
the center and then pull the crank off. Save the plastic bushing
behind it if you want to sell them to someone else.
3. Remove the door handle cover by removing the Phillips head screw
from the middle of it and then slide it to the side.
4. Now use a tool to remove the plastic clips from the backside of the
door panel. Work your way around starting from the outside in.
5. There is a spring on the manual window regulators just slide that
off and put it with the door handles.
6. Now you should see a black or clear plastic that protects the inner
door. Carefully remove it .. it should be held on by some black tape.
- Manual Window Regulator Removal:
1. Run some masking tape from the inside of the window attached to the
glass all the way around the top of the doorframe and onto the outside
of the glass. This will hold up the glass pane while you remove the
2. Use a dremel tool or grinder to smooth the rivets down so you can
drill them out.
3. Drill out the rivets one by one making sure that the tape is
sticking well to the glass so it doesn't fall down on you.
4. Now the regulator should be free from the door. With one hand on
the regulator remove the tape holding the window up. Let the windows
down about half way.
5. You should now be able to see the channel that the regulator slides
back and forth in. Slide it all the way to the right side and you will
see that the channel widens to allow the regulator to come free from
the window. Remove it from the door.
6. Now push the window back to its up position and re-tape it. This
will keep it out of the way while you run the wiring.
- Wiring Installation:
1. On both doors there will be a plastic knock out button about
2" in diameter you can knock out. Then run the square end of the
harness through that hole.
2. Now for the tricky part. Remove the parking lamps on both front
fenders. Take a piece of wire and run it from the hole where the lamps
were through the inner fender back to the door. Attach the door
harness with some electric tape to the wire and pull it to the front.
The door harness has a rubber grommet molded onto it so just push it
into the hole in the door.
3. Now for the harness that goes in front of the radiator. Disconnect
the plugs from the horn, headlights, and blinkers. Also any plugs that
are on the drivers side fender well. There are 2 grounds 1 on each
side of the radiator.
4. Remove the 2 10mm bolts holding the radiator in. Gently lift the
radiator about an inch and let it lean back on the engine. If you have
air conditioning you will have to remove the 2 8mm bolts holding the
coil in place. You will also need to remove the battery and the
Windshield washer reservoir and coolant overflow tank.
5. This will give you access to the harness running across the front
of your vehicle. You can now disconnect any power connections to the
starting solenoid. And work your way back to the driver's side.
Everything should be disconnected in step 3 so it should just come
6. Now take your new harness and place it in the same location. Should
be a perfect fit just like the old one you took out. Connect up the
headlights, blinkers, horn, grounds, and the plugs on the drivers side
fender well. There should be one connector left that doesn't have a
home, which should have 3 or 4 wires depending on ranger or bronco II.
One of the wires should be a blue with either black dots or a black
7. You can now at this time hookup the door harnesses to the main
harness at each end. One should be behind where the battery sits and
the other behind the overflow tank. I recommend using some Di-electric
grease in these cause they seem to get easily corroded.
8. There should be a Black with white stripe wire at the starter
solenoid end that needs to be wired to the battery side of the
9. On the drivers fender well underneath the voltage regulator there
should be a small round connector that has a blue with black dots or a
black stripe wire. My main harness connector and this one didn't have
the same ends but the only one you need to worry about is the blue
with black. Just tap this line and run it to the blue with black wire
on the harness that I spoke about in step 6. This will be the power
from the fuse panel to run the power windows.
10. In the fuse panel there should already be a location for a circuit
breaker for Power windows look at your manual. Insert the circuit
breaker and you are done.
11. You can mount the relay pack for the door locks as well anywhere
you can find on the drivers side behind the headlight.
for a diagram of the Ranger/Bronco II Door Glass & components
- Installing the Power Window Regulators:
1. First grease the gear with some Vaseline.
2. Slide the regulator in through one of the holes in the door and let
it sit at the bottom.
3. Next remove the tape from the glass again and let the window about
half way down. And re-tape it to stay there.
4. Next slide the arm of the regulator into the channel of the window
5. Now you can remove the tape and let the regulator get in to its
6. Next Rivet the regulator to the door. Note the location of rivets.
I started with the top one so you could swivel it back and forth to
get the other holes lined up.
7. Once you have all the rivets installed hook up the power connector
to the window motor.
- Installation of Power Locks:
1. If you have the factory power lock assembly's all you have to do is
attach the actuator to the door and the rod to the push down lock rod
2. Then hook up the power connectors
3. If you have aftermarket locks will need to bend the rod for the
actuator to match the angle of the door lock button rod.
4. Then attach the actuator to the door and attach the rod to the door
5. Then hook up the power connectors.
6. You should notice that the wiring for both the window motors and
lock actuators have plastic clips to hold them in place. Insert these
into the holes in the bottom of the door.
- Grease The Window Tracks:
Before you put the door panels back on you need to grease the window
tracks. This will make your windows go up and down
smoothly. Take a jar of Vaseline and set it out in the sun to get
soft. Take your finger and smear a healthy amount of Vaseline into the
track that the window slides up and down in. You will have to move the
window up and down to get access to the entire track. This keeps it
from hopping when you roll it down as well as keeping it from dragging
going up. Mine acted like brand new motors after doing this step.
- Re-Installing the Door Panels:
1. Install the plastic that was behind the door panels and tape it
down with duct tape.
2. There should be a metal ring in the door panel where the switches
go. Slide the switch harness through this hole and let it hang on the
outside for now.
3. Push the door panel up to the door and start pushing the plastic
clips in from the inside out. The door panel should stay on now
without holding it. If not go to the parts store and get some new
clips they are cheap.
4. Now screw the switches to the plastic switch bezels. Should be one
screw on the topside.
5. Next insert the bezels into the door panel. They have little metal
clips that pinch down on the door panel at the top and on the bottom
there is a hole for a bolt.
6. Re-install the door handle covers.
7. Re-install the armrests.
- Final Touches:
- 1. Re-install the batter and reconnect the terminals.
2. Use a voltmeter and check for voltage on the Black with White wire
coming from the starting solenoid and at the door lock relay packs.
You should have 12 Volts at both locations.
3. Turn the ignition key to on. Check for voltage at the Blue with
black wire that is referred to in step 9 of the wiring installation
section. There should be 12 volts with the key on. 0 Volts with the
4. Try out the windows and locks.