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‘94 4x4 Swap/Build thread




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PetroleumJunkie412

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Read this beginning to end for the second time. This thing is a masterpiece. You should be commended.

Well done, sir. I tip my goofy f*cking plenum to you.
 

DRanger024

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Location
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Vehicle Year
1994
Make / Model
Ranger
Engine Type
4.0 V6
Engine Size
4.0
Transmission
Manual
2WD / 4WD
4WD
Total Lift
~4" front, 2" rear
Tire Size
32X11.50-15
Read this beginning to end for the second time. This thing is a masterpiece. You should be commended.

Well done, sir. I tip my goofy f*cking plenum to you.
Thanks. I don’t know if it’s a masterpiece. There are a lot of things I want to do when the weather is warm but by then I don’t want the truck down for more than a couple days. Camping, hauling and yard work are it’s main roles.

35173


No I didn’t take it down any public roads like that. Just used it to haul all of that wood from the driveway to the deck on the back of the house for winter storage.

35174
 

Josh B

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Manual
2WD / 4WD
4WD
Pop a wheelie!! :D
 

DRanger024

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Location
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Vehicle Year
1994
Make / Model
Ranger
Engine Type
4.0 V6
Engine Size
4.0
Transmission
Manual
2WD / 4WD
4WD
Total Lift
~4" front, 2" rear
Tire Size
32X11.50-15
Changed the front driveshaft boot today. 30° and windy so naturally I did it in the driveway. Took me two hours to track down some synthetic grease with ptfe in it. Local dealer wanted $45 for the small tube of Motorcraft XG-8a. Eat my shorts. I ended up at a local Ag dealer and bought some John Deere grease.
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You can see how bad the original boot cracked. I must have over extended it when I did all of my recent front end work. The rubber is still very pliable.
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Remove the clamp on the big end of the original boot first. Clean a spline off and mark it with a paint marker. Make another alignment mark on the yoke in-line with your marked spline.
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I marked my cleaned spline on all three sides so I wouldn’t lose it when I pulled the old boot off. Glad I did. I didn’t want to cut the old boot off simply because I didn’t want to scratch whatever the blue coating is that Spicer applied to the shaft. The boot fits very snug against the splines.

Once the old boot is off, clean the spines out with the corner of a rag. I didn’t use any solvents because I have no clue what the blue coating is made of. It’s relatively thick and would surely make things clunk and wobble if it was removed.
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Clean up the yoke and stuff some grease in there. Make sure you don’t wipe off your alignment mark.
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I put a very light film of grease inside both ends of the new boot just to help it slide on. Slide the small clamp over the splines and slide the new boot on. The boot will have to stretch over the splines a little. Get the clamp over the boot and push it on the rest of the way. Now you can grab the yoke end, put the large clamp on, line up your splines and push it together. Same photo as above.
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When I took the old boot off, the ears on the clamps were lined up with each other. I used one of the mold lines on the new boot to do the same. My Knipex pliers for Oetiker style ear clamps didn’t show up yet so I had to make due with my PEX pliers. Do NOT use side cutters to try tightening the clamps. It will not work. So the job is done, my hands are numb and my front shaft won’t get ruined by water or debris anymore.
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Pic of the box the boot came in for reference.
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The old boot was trashed. Ripped 2/3rds of the way around and probably would have ripped the rest of the way soon.
35279
 
Last edited:

DRanger024

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Location
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Vehicle Year
1994
Make / Model
Ranger
Engine Type
4.0 V6
Engine Size
4.0
Transmission
Manual
2WD / 4WD
4WD
Total Lift
~4" front, 2" rear
Tire Size
32X11.50-15
So other than 4wd and a 4.0, there was one other thing my truck didn’t come from the factory with that I really wish it had. Cruise Control.

I searched and searched for a good few weeks trying to see if anyone else had added the factory cruise to an 89-94 truck. General consensus, people either have no clue where to start or the wiser and more knowledgeable forum members tell them to forget about it and install an aftermarket system. Since the aftermarket systems look really tacky to me and I didn’t want to be bumbling around in the dark trying to press tiny buttons on the dash, I opted to dive in head first. It took two trips to the junkyard to get everything I needed.
Trip #1 netted me;
-horn pad with cruise buttons
-“clock spring” harness(3 pin vs. 2 pin for non cruise)
-servo and vacuum lines
-cruise control amplifier
-vacuum dump valve and brake pedal lever
Trip #2 netted me the entire dash harness from a ‘92 Ranger with cruise control.
Obviously there are some differences between the dash harness in a ‘92 and a ‘94. Most notably, the ECM location. I would have preferred the harness from a ‘94 but mid 90’s Rangers are getting scarce in the junkyards around me.
So there are two ways to go about adding the factory cruise. You can either find a matching year dash harness and swap it in, plug in the cruise amp and steering wheel controls and be on your merry way or strip all of the cruise control wires out of any harness from 89-94 and wire it in to your existing harness. I decided to tackle the latter of the two and wire it in. I DID NOT remove my dash for this. The only real modification I had to make was drilling a hole in my firewall for the grommet containing the servo wires.

So what needs to be wired in? Every wire on the smaller gray plug, the horn relay(non cruise trucks don’t have a relay) and the connector for the clock spring harness. I chose to work my way from the steering wheel forward so I wired in the clock spring harness and the horn relay first. Non cruise trucks have a round, 3 wire connector for the clock spring whereas cruise trucks have a square, 4 wire connector. The only wire you won’t cut in this harness is the black wire with the pink tracer for the key in chime. That wire can be unpinned from the round connector and added into the square connector. The solid black wire goes to any chassis ground, the solid blue, yel/lt grn and yel/blu wires can be matched up and spliced together. You shouldn’t have to splice the yel/lt grn wire from the horn relay but I got ahead of myself when I gutted my donor dash harness and cut them on accident.
On the gray plug coming from the cruise amplifier;
-blu/blk goes to the clock spring harness(retain factory pin)
-lt green goes to the clutch switch 4th pin(retain factory pin)
-gry/blk is the vss+ and gets pinned into the firewall plug. Reference male side of plug for correct pin location. NOTE: being my harness was from a ‘92, it had a male pin on the vss wires. You will need to change these to female pins. The vss wires to the ecm are already in the male side of the firewall plug.
-pink/orange is the vss- change to female pin and insert in firewall plug. Reference male side of plug for correct pin location
-black goes to ground
-orange is 12 Volts hot in run

I ran the orange and black wires up behind the radio and spliced in there. The cruise control system uses very low voltage so no need to worry about drawing the power from the radio circuit. You will need to add another lt green wire to the clutch switch. This will be pin 3 and gets spliced into the lt green wire coming from the brake pedal switch.

The wires coming from the white plug all run to a grommet in the firewall and pass through to the cruise control servo. I shortened all of these wires There is a hole for this grommet from the factory but I had already used it to pass my cb coax/power wires through as well as the wires for my air horn and the cube lights in my front bumper.
I ran a 1.25” hole saw through the firewall just to the left and slightly above the factory hole.
36177


This also happens to give you a good starting point to run the rest of the wires. All but two of the wires for my cruise control(12-volt switched and ground) are taped together and tucked under the carpet. I have the amplifier tucked up under the center of the dash like so
36178


Steering wheel switches. Be careful here, the 93/94 horn pad seems to be a slightly different shape from the earlier trucks.
36182


Dash torn apart and steering column dropped to ease wiring but mostly to help with getting the vacuum dump valve installed. I guess the dump valve is a kind of back up safety feature and will dump the vacuum in the servo if all else fails. There is an approximately .75” diameter hole in the brake pedal bracket that the valve goes into. It snaps in through a spring collar with fingers on it that snap into groves on the valve. It’s adjustable to meet up with the plastic arm that clips onto the brake pedal arm. (I failed to take a pic of either of these items)
36183


So once the wiring is finished and you get the dump valve installed, the column can be bolted back up and the dash can be put back together.

On to the servo. As far as I know there are two different servos used in this era of rbv’s. The only differences are the wiring harness plug and possibly the cable length. The more common servo has a rectangular connector and the one I got from a ‘94 explorer has a round connector. You can use either one if you are comfortable with splicing the correct plug onto the harness, otherwise make sure you grab the correct servo for your harness. There are also two different mounting brackets for the servo. Explorer and Ranger. The Explorer bracket has a tab on the bottom that gets inserted into a slot in the inner fender and bolts to the fender lip. This bracket puts the servo cable perpendicular to the fender. The Ranger bracket is riveted to the inner fender and puts the cable parallel to the inner fender. I liked the look of the Explorer bracket better so that’s what I grabbed. The hole for this bracket is already in the Ranger fender lip and there is a slot already in the inner fender. Unfortunately I had previously installed a power distribution block in this spot so I simply bent the bracket a little for clearance between the back of the servo and my power block. Obviously the tab on the bottom of the bracket is not inserted in the inner fender.
36186


Here is a better shot showing the round white connector.
36189


That’s basically it. Make sure your vacuum lines are connected and take it for a drive. On the first start after the install, I had the vacuum lines connected backward on the servo. Redline for a good time :oops: Make sure your vacuum lines are connected correctly.
So after 26 years, my truck finally has “factory” cruise control and it works flawlessly.

Any questions just ask.
 
Last edited:

Josh B

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Nice job man :)
 

DRanger024

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Vehicle Year
1994
Make / Model
Ranger
Engine Type
4.0 V6
Engine Size
4.0
Transmission
Manual
2WD / 4WD
4WD
Total Lift
~4" front, 2" rear
Tire Size
32X11.50-15
Truck finally got its old shoes back (and one new one). I’ve had 15x8 soft 8’s on it since high school. 15 years ago already o_O. Took on the task of dismounting tires and getting them back on the 8’s. All 4 with a hi lift jack and tire spoons. I think the first one took me about 50 minutes from pulling the valve core to screwing the cap back on. Last one took 20 and I didn’t even scratch the new wheel.

36880


Other than that, not much is new. Cruise control is working great. Truck goes in in the morning to have the tires balanced.
 

possum

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Very nice truck! A pic of my 94 B9567196-D0C5-423E-9602-7E4F9D143F9F.jpeg
 

DRanger024

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1994
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Ranger
Engine Type
4.0 V6
Engine Size
4.0
Transmission
Manual
2WD / 4WD
4WD
Total Lift
~4" front, 2" rear
Tire Size
32X11.50-15
Towards the end of winter I noticed the transfer case getting pretty noisy in high range. She was howling like no other. So I decided to change the fluid and it was ugly. Shimmering purple mess. So at the end of February I pulled it out and tore it down. Here is what I found;

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Broken pump pick up lead to angry bearings and bushings

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Shaft was scored and had heat marks in it.
39245


What you can’t see in the pic below is the bronze bushing actually slid right out of the bore. Not exactly a press fit anymore.
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It was hard to tell if all this funk was burned ATF, rust or a combination of both.
39251


Old
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“New”
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So I rebuilt it with spare parts from the electric case I pulled from the Mazda. Nothing too exciting. Chain was tighter in the manual case so I used that, everything else came from the electric case where applicable. It’s nice and quiet and even shifts better now.

Then I got tired of the busted old grille and have always wanted the 4x4 style grille so I got one.
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Also made it to the junkyard to do some snooping around. The speedo in my truck has bounced since I put the 4.0 in it.

So I swapped in a Mazda cluster and quite frankly, Ford should have kept this cluster for themselves. I think it looks way better than the Ranger cluster.
39261


That and a low mileage cable fixed my bouncing speedo

And last but not least, I finally found a nice leather wrapped steering wheel out of a ‘94 STX. So long sticky plastic steering wheel!
39266
 
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snoranger

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Usually the pickup tube rips because the pump spins. What caused the pump to spin on this one?
Was it case wear or did the little arm that stops the pump from spinning wear or break?
 

DRanger024

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Location
Dale, WI
Vehicle Year
1994
Make / Model
Ranger
Engine Type
4.0 V6
Engine Size
4.0
Transmission
Manual
2WD / 4WD
4WD
Total Lift
~4" front, 2" rear
Tire Size
32X11.50-15
Usually the pickup tube rips because the pump spins. What caused the pump to spin on this one?
Was it case wear or did the little arm that stops the pump from spinning wear or break?
Neither :unsure: Maybe someone had it apart before I got ahold of it and ripped the tube. The case has some wear where the drive tab contacts it but nothing to worry about. Maybe .030” deep. The tab on the old pump did have approximately .060” worn off but I wouldn’t think that would be enough to pull the tube apart. The used one I put in had even less wear than the case. I did check to see if the wear was enough to even stretch the tube and it had slack in it with the tab fully seated against the case. Kind of hard to check that with the old pump. The old tube wasn’t nearly as pliable as the new one. If it happens again, I’ll pull it apart and weld the wear in the case up and put a brand new pump in.
 

DRanger024

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Messages
598
Reaction score
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Location
Dale, WI
Vehicle Year
1994
Make / Model
Ranger
Engine Type
4.0 V6
Engine Size
4.0
Transmission
Manual
2WD / 4WD
4WD
Total Lift
~4" front, 2" rear
Tire Size
32X11.50-15
Just ordered skyjacker 134’s. Time to get rid of some spacers.
 


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