YJ to CJ dash swap write up with pictures - Page 11 - JeepForum.com
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Go Back JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > YJ to CJ dash swap write up with pictures

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Unread 09-17-2012, 11:04 PM   #151
lidlitalian
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1987 YJ Wrangler 
 
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Good luck, tried about a year ago...

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Unread 09-20-2012, 02:02 PM   #152
jamma007
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Did you happen to do a build thread on it?
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http://www.jeepforum.com/forum/f12/buckley-build-thread-94-yj-1360395
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Unread 02-16-2013, 01:38 PM   #153
moku
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I just finished doing a swap myself although it's still not finished - I have to install a radio, put some more bolts in the dash, and cut the window for the defrost. I'm not sure if I'm going to do the defrost. I've driven it in the snow and haven't even needed it yet so I may not. I bought a CJ dash off Craigslist for $100 and used all the old gauges. I learned a few things along the way and can probably answer some questions. My YJ is a 95 and I used wiring diagrams I found online and from a Chiltons manual that is for 1987-1995 Wranglers. I know most Chiltons cover multiple years/models and usually aren't very good. However, the one that is only YJs was spot on for the wiring. I didn't have a CJ harness so I built by own using weatherpak connectors - they are a bit pricey and you could probably use the multi-pin molex connectors from Radio Shack.
dash.jpg  
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Unread 02-16-2013, 01:56 PM   #154
moku
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One challenge was how to hook the cables for the heater, vent, etc. First I removed all of the old YJ cables. If you search some forums you'll find the door that is operated by vacuum is only closed when the old lever was in the "off" position. I decided I would leave the vacuum hooked up so it's open whenever the engine is running as I like airflow anyway and I can still control the temp. I ziptied the vent door that is behind the steering wheel up under the body behind the dash - mostly because mine never worked correctly with the old levers and I thought it would just be too hard to mess with. I connected the temp door, defrost deflector door, and the lower vent door using Dorman Help universal cables from O'reilly auto parts - the ones with 1" chrome knobs on them. I found that once you remove the yj cables you can carefully "unthread" the plastic adapters that hold the cables in place to the YJ components. I simply cut the Dorman cables to fit and "threaded" the plastic connectors onto the Dorman cables. They all work like a champ with the exception of the temp control being fairly stiff - which it was before the dash swap too. For that cable I added some additional cable terminal ends in case it trys to slip. Oh yea, and the temp control is opposite of what the CJ dash indicator/label states. Overall I'm really happy with the function and look of the cables.
cable.jpg  
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Unread 02-16-2013, 02:01 PM   #155
moku
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Using the old CJ gauges I had to replace the sending units. The temp and oil pressure sending units are super easy to change and they fit. It can be frustrating finding the right sending unit for your oil pressure gauge however. If you search some forums you'll find there were several gauges/sending units throughout the years and I didn't even know what the dash came off of. I have not changed the fuel sending unit yet so my gas gauge reads backwards (F is empty, E is full).
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Unread 02-19-2013, 05:16 PM   #156
moku
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I also wired a 4 position CJ heater fan switch into the dash and it works great! Off, lo, med, hi

Just had to ohm out the switch to figure out which tab was for what...
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Unread 02-25-2013, 09:51 PM   #157
jamma007
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How did you deal with the speedo. Cj is mechanical and the 95 is electric correct? I have seen a thread or two about getting te sending unit off a 91bc they are both
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Unread 02-26-2013, 05:29 AM   #158
JeepsOLot
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Here is a list of vehicles that have the double output VSS. This was a few pages back, but, thought I would bring it up again.

Originally Posted by remmons
Ready for this? Here it is. Good luck!


Vehicle Speed Sensor compatability
Jeep Vehicles
1991 WranglerL4 - 2.5L vin P 150ci - MFI GAS OHV
1991 WranglerL6 - 4.0L vin S 242ci - MFI GAS OHV
1991 Wrangler IslanderL4 - 2.5L vin P 150ci - MFI GAS OHV
1991 Wrangler IslanderL6 - 4.0L vin S 242ci - MFI GAS OHV
1991 Wrangler RenegadeL6 - 4.0L vin S 242ci - MFI GAS OHV
1991 Wrangler SL4 - 2.5L vin P 150ci - MFI GAS OHV
1991 Wrangler SaharaL4 - 2.5L vin P 150ci - MFI GAS OHV
Dodge Vehicles
1988 – 1989 D100V6 - 3.9L vin X 239ci - TBI GAS OHV
1988 – 1989 D100V8 - 5.2L vin Y 318ci - TBI GAS OHV
1988 D100V8 - 5.9L vin W 360ci - 4BBL GAS OHV
1988 – 1989 D150V6 - 3.9L vin X 239ci - TBI GAS OHV
1988 – 1989 D150V8 - 5.2L vin Y 318ci - TBI GAS OHV
1988 D150V8 - 5.9L vin W 360ci - 4BBL GAS OHV
1989 D150V8 - 5.9L vin Z 360ci - TBI GAS OHV
1989 D250L6 - 5.9L vin 8 359ci - MFI DIESEL OHV Turbo-charged
1988 – 1989 D250V6 - 3.9L vin X 239ci - TBI GAS OHV
1988 – 1989 D250V8 - 5.2L vin Y 318ci - TBI GAS OHV
1988 D250V8 - 5.9L vin 1 360ci - 4BBL GAS OHV
1988 D250V8 - 5.9L vin 5 360ci - 4BBL GAS OHV
1989 D250V8 - 5.9L vin 5 360ci - TBI GAS OHV
1988 D250V8 - 5.9L vin W 360ci - 4BBL GAS OHV
1989 D250V8 - 5.9L vin Z 360ci - TBI GAS OHV
1989 D350L6 - 5.9L vin 8 359ci - MFI DIESEL OHV Turbo-charged
1988 D350V8 - 5.9L vin 1 360ci - 4BBL GAS OHV
1988 D350V8 - 5.9L vin 5 360ci - 4BBL GAS OHV
1989 D350V8 - 5.9L vin 5 360ci - TBI GAS OHV
1989 D350V8 - 5.9L vin Z 360ci - TBI GAS OHV
1988 DakotaL4 - 2.2L vin C 135ci - 2BBL GAS SOHC
1989 – 1993 DakotaL4 - 2.5L vin G 153ci 2507cc - TBI GAS SOHC
1992 – 1993 DakotaV6 - 3.9L vin X 239ci - MFI GAS OHV
1988 – 1991 DakotaV6 - 3.9L vin X 239ci - TBI GAS OHV
1992 – 1993 DakotaV8 - 5.2L vin Y 318ci - MFI GAS OHV
1990 – 1991 DakotaV8 - 5.2L vin Y 318ci - TBI GAS OHV
1989 Dakota ShelbyV8 - 5.2L vin Y 318ci - TBI GAS OHV
1988 – 1991 Dakota SportV6 - 3.9L vin X 239ci - TBI GAS OHV
1991 Dakota SportV8 - 5.2L vin Y 318ci - TBI GAS OHV
1988 – 1989 RamchargerV8 - 5.2L vin Y 318ci - TBI GAS OHV
1988 RamchargerV8 - 5.9L vin W 360ci - 4BBL GAS OHV
1989 RamchargerV8 - 5.9L vin Z 360ci - TBI GAS OHV
1989 W100V6 - 3.9L vin X 239ci - TBI GAS OHV
1988 – 1989 W100V8 - 5.2L vin Y 318ci - TBI GAS OHV
1988 W100V8 - 5.9L vin W 360ci - 4BBL GAS OHV
1989 W150V6 - 3.9L vin X 239ci - TBI GAS OHV
1988 – 1989 W150V8 - 5.2L vin Y 318ci - TBI GAS OHV
1988 W150V8 - 5.9L vin W 360ci - 4BBL GAS OHV
1989 W150V8 - 5.9L vin Z 360ci - TBI GAS OHV
1989 W250L6 - 5.9L vin 8 359ci - MFI DIESEL OHV Turbo-charged
1989 W250V8 - 5.2L vin Y 318ci - TBI GAS OHV
1989 W250V8 - 5.9L vin 5 360ci - TBI GAS OHV
1989 W250V8 - 5.9L vin Z 360ci - TBI GAS OHV
1989 W350L6 - 5.9L vin 8 359ci - MFI DIESEL OHV Turbo-charged
1988 W350V8 - 5.9L vin 1 360ci - 4BBL GAS OHV
1989 W350V8 - 5.9L vin 5 360ci - TBI GAS OHV

This will help with junkyard searching.

Jerry
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1992 Jeep "CJ9" (YJ with '78 CJ front clip, '80 CJ Tailgate, Custom CJ Dash with '76 CJ Gauges) AX-15 from a '93 YJ, 2.5" Rancho SL, 5/8" MORE booms, 1" BL, and 33"x10.50" SS TSL's
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Unread 02-26-2013, 06:17 AM   #159
moku
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Yea, that's pretty much it. Use the 91' VSS that has both a mechanical connection for a speedo cable and an electrical connection for your VSS.

To use it, you'll require a speedometer pinion gear housing assembly. I got lucky because my neighbor had one in his garage! You will need to find one somewhere as that is what the VSS screws on to.

Also, the VSS has a 5/8" speedometer cable connection - the same as the back of the CJ speedo. The speedometer cables I could find are typically 5/8 on one end, and 7/8 on the other. So you can either get a custom cable (pricey) or find a 5/8 to 7/8 thread adapter. I was able to find an adapter online and order it (like $6 for the part and $6 for shipping). I'm sure you could find something similar at a junkyard if you did your homework.
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Unread 02-26-2013, 06:59 AM   #160
JeepsOLot
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My custom speedo cable cost me $50 at a speedo shop, I didn't think that was too bad.

Jerry
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1992 Jeep "CJ9" (YJ with '78 CJ front clip, '80 CJ Tailgate, Custom CJ Dash with '76 CJ Gauges) AX-15 from a '93 YJ, 2.5" Rancho SL, 5/8" MORE booms, 1" BL, and 33"x10.50" SS TSL's
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Unread 02-26-2013, 07:10 PM   #161
moku
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I called this a speedometer pinion gear housing assembly - not sure if that's right, but here's a picture
housing.jpg  
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Unread 02-26-2013, 07:10 PM   #162
moku
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Also, the 91 VSS will have a two wire output and your old one is a 3 wire - easy fix though.
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Unread 02-26-2013, 07:12 PM   #163
moku
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Here's a picture of a 91 VSS...
1991vss.jpg  
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Unread 03-29-2013, 03:05 PM   #164
myquite
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How did you guys do the headlight switch? i'm looking at the diagrams for yj and cj switches and can't figure it out. I want to retain full function of the switches, which i would think is possible. Any hints, tips, or help? Thanks
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Unread 09-24-2013, 04:06 PM   #165
MathewWalsh
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Am I the only one who can't view any of the OP's pictures?
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