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I have a 2000 Excursion V10, and it currently has the stock electric-shift 273 transfer case. In the name of expedience, and the relatively high difficulty of troubleshooting the electrical issues that may be preventing my 4WD from working, I decided to take the "easy" way out, and convert to a manual transfer case. I purchased a used 271 from a 2000 F-250/AT, and I found the appropriate shifter on ebay. Based on my understanding, this should be the extent of parts that I need to purchase for this project. I've read that there is a plate where the t-case shifter goes, that pops out, making that part of the installation pretty simple
For those of you who have done this conversion, What else do I need to watch out for? I don't particularly care if the dash 4x4 indicator light(s) work, but it would be a nice bonus if they did. Living in western Wisconsin, I just need the 4WD to work.
On my previous Ex I just converted my 273 to a manual shift by removing the electric shift motor and building my own manual shifter. The main diffrence between the 271 and 273 is the manual shifter vs electric however the 273 also has synchros which allow you to shift into 4wd high range at any speed so it was a better T case for my use.
Building a manual shifter for my current Ex has been on my project list for years, heck I even have the hunk of aluminum for the shift arm in my door pocket. Lmao
I've wondered about converting the 273 to a manual shift for a while now.
OP, are you having an electrical issue for sure, or are your hubs not locking in automatically? Have you been able to verify that the electric motor is in fact not shifting? Seems that you're set on the conversion, but wanted to make sure the more common things were already checked: vac lines aren't cracked/broken/leaking, hubs are lubed/cleaned/operating properly.
I've wondered about converting the 273 to a manual shift for a while now.
OP, are you having an electrical issue for sure, or are your hubs not locking in automatically? Have you been able to verify that the electric motor is in fact not shifting? Seems that you're set on the conversion, but wanted to make sure the more common things were already checked: vac lines aren't cracked/broken/leaking, hubs are lubed/cleaned/operating properly.
Precisely nothing happens when I turn the **** on the dash. No relays engaging, no motors turning, no vacuum actuators operating. I had a leaky windshield, which I sealed up, but I suspect that water contaminated things under the dash, and I have more work ahead of me to clean it all up.
In any case, I'll be doing the thing this weekend. I'll post back with updates. The shifter may not be here in time, but I can at least swap the t-case, install my Warn hubs, and test things out.
On my previous Ex I just converted my 273 to a manual shift by removing the electric shift motor and building my own manual shifter. The main diffrence between the 271 and 273 is the manual shifter vs electric however the 273 also has synchros which allow you to shift into 4wd high range at any speed so it was a better T case for my use.
Building a manual shifter for my current Ex has been on my project list for years, heck I even have the hunk of aluminum for the shift arm in my door pocket. Lmao
This is assuming auto hubs, right?
I was under the impression that if you have manual hubs (and they are engaged) you can still use the manual transfer case to switch into 4H at speed.
Completed most of the conversion today. It took right around 6 hours, working with one other guy, taking our time. The new shifter won't be here until Monday, but everything else is done, and it all works as expected. It all bolted up as expected, and the only thing that I can't hook up is the switch on top that illuminates the "4X4" light on the instrument panel. This is something I can live with, in the name of making the 4WD system as reliable as possible. The Warn premium locking hubs complete the package.
I also replaced a front bearing hub. The ABS sensor was setting trouble codes, so it was time to replace it. When I started it up, the ABS light was off for the first time since I bought the vehicle. Unfortunately, the first time I hit the brakes hard enough to lock up the wheels (it's snowing, so this was easy), all four brakes locked up, and the ABS light lit up once again. Now it's complaining about the rear axle sensor. I guess my work is never done.
On my previous Ex I just converted my 273 to a manual shift by removing the electric shift motor and building my own manual shifter. The main diffrence between the 271 and 273 is the manual shifter vs electric however the 273 also has synchros which allow you to shift into 4wd high range at any speed so it was a better T case for my use.
I took the motor off my 273 to look at what was underneath, and I'm guessing you had to weld something to the nub that sticks out.
I attempted to install my F-250-style shifter, and found what appears to be a heating duct under the carpet, right over the plate that covers the hole where the shifter comes through. I'd imagine Ford did this because they never intended to install a 271 in an Ex. I may have to notch this duct to complete the project. The shift lever seems like it might be too long for the Ex, but I won't know until I get the cover open, and actually try to fit it in there. In any case, I have 4WD now, by leaving the T-case in 4H, and using my hubs to go engage/disengage the front axle.
No welding, I made the shift arm center hole the shape of the the shaft and then clamped it on like motorcycle shifter, my shifter was cable actuated so I could mount it to the body and not the trans, that allowed me to mount it where I wanted and not mess with cutting the rear passanger compartment area heather vent.
Lots of cable shifters on the market but since you first posted this I picked up some parts off a Jeep XJ in the junk yard to make me a cable shifter for my current Ex.
No welding, I made the shift arm center hole the shape of the the shaft and then clamped it on like motorcycle shifter, my shifter was cable actuated so I could mount it to the body and not the trans, that allowed me to mount it where I wanted and not mess with cutting the rear passanger compartment area heather vent.
Clamp was similar to something like this
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How much do you want for one of these shipped to my door.
We just got a foot of snow and I had to get towed by GM products... Twice... Within a mile of my own house. (And once by an F-150.)
I need 4x4 to work and I don't want to have to crawl under the truck to bang on a freakin' motor in a foot of snow every time I need to shift to 4x4.
Cable shifter, not sure. I would think you'd want a solid shaft because shifting the case is a bit hard. If you have a local yard, that's where I'd look first. Otherwise, you can order one from Ford, which will cost a pretty penny. You might find one on ebay. The X has the hole in the floor pan with a cover on it, which is a direct fit for the same year range super duty.
EDIT: why not just leave it in 4WD High all the time while there's snow on the ground?
Last edited by EXSwap; Jan 4, 2022 at 08:43 AM.
Reason: added info
Following along as I'm interested as well. I like to keep the stronger NP273 case when I do a motor & trans swap , but want to be able to manually shift it. Hopefully there's an "off-the-shelf" or "tried-and true" solution out there somewhere.
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I knew I had some Déjà vu on this. https://www.ford-trucks.com/forums/8...l#post12973070
Manualizing the TC seems like a good idea, but I've yet to have any issue with the electric motor.
Saving this info for when it goes bad.
I knew I had some Déjà vu on this. https://www.ford-trucks.com/forums/8...l#post12973070
Manualizing the TC seems like a good idea, but I've yet to have any issue with the electric motor.
Saving this info for when it goes bad.
electric motors rarely fail but they are easy to diagnose and replace. The real problem is when the issue is somewhere upstream, the system is deceivingly complicated. Often times the problem ends up In the GEM or PCM which depending on your Ex can be unavailable for purchase.