Ford 4000 SOS shifter

[wink4000]

Wellll, after many repairs and quick fixes I finally stripped the shifter shaft (part #13 in diagram) for my 4000 Select o Speed while in the yard gunning for yet another quick fix. Some of you might know what I’m talking about, basically what happens is the (once upon a time) coarse edge of the shaft (circled in photo) presses up against the super hard metal of the friction plate and eventually (took 55 years) it grinds it flat, so the shifter no longer can pull the cable leading to the transmission. So my quick fixes usually involve making a washer out of soft metal, drilling hole, making both surfaces course and it buys a couple years. Buut I obviously over tightened the half threaded shaft one too many times. Looking for solutions. I can’t find the part- but interested if any of you have channels for this. Or Machine shop laying weld and using lathe to rethread? I’d rather not fabricate a new shifter, but tractor is running great, so not out of the question.

 

[Sean in PA]

The parts site shows the same part number for that shaft for both the 3 and 4 cylinder 4000's, so maybe that might help expand your search for a donor tractor. The part number for both is 86531358. unfortunately, tractor-part.com cannot find one in any of the tractor salvage yards in its database.

 

[Fordfarmer]

Wellll, after many repairs and quick fixes I finally stripped the shifter shaft (part #13 in diagram) for my 4000 Select o Speed while in the yard gunning for yet another quick fix. Some of you might know what I’m talking about, basically what happens is the (once upon a time) coarse edge of the shaft (circled in photo) presses up against the super hard metal of the friction plate and eventually (took 55 years) it grinds it flat, so the shifter no longer can pull the cable leading to the transmission. So my quick fixes usually involve making a washer out of soft metal, drilling hole, making both surfaces course and it buys a couple years. Buut I obviously over tightened the half threaded shaft one too many times. Looking for solutions. I can’t find the part- but interested if any of you have channels for this. Or Machine shop laying weld and using lathe to rethread? I’d rather not fabricate a new shifter, but tractor is running great, so not out of the question.

I'm pretty sure I have a SOS shifter in my parts stash.

 

[Ultradog MN]

I still say someone needs to make a handle and shaft that bolts onto the side of the transmission cover to replace the original shifter and cable. If I had a doner SOS I believe I could make something that would work.

 

[wink4000]

Thanks gentlemen. I called the other day and they found an SOS part at the big junkyard in pennsylvania.. The SOS looks similar, but different, so I wanted to run it by you guys, not sure if the shaft I need is buried in there. Also, the part was a bit too pricey for my liking- I was considering it because fabricating would take time. And I got a similar quote from a machinist. Anyway I posted the photo the junkyard sent, this is a different shifter housing, right?

 

[Fordfarmer]

I still say someone needs to make a handle and shaft that bolts onto the side of the transmission cover to replace the original shifter and cable. If I had a doner SOS I believe I could make something that would work.

I still have that 4400 SOS. You could have it, if you want to experiment on it.

 

[nashranch]

I'll take it Fordfarmer. Let me know how much to ship it to Oregon

 

[Sean in PA]

As I said earlier, the shaft you are asking about is the same part number for the pre-1965 4 cylinder 4000 (and 2000/671/681/871/881) and the 1965+ 3 cylinder 4000 (and 2000 & 3000), but the housing and other things are different.

 

[wink4000]

The part is an especially brittle aluminum which is disappointing- though maybe designed to save transmission from over eager operators. Thank you for the info Sean. i’ll look into this. Here is another forum on similar issue. May try a similar fix, roll pins seem like a good idea.

D

Thread 'Select-o-speed Shift Lever Slipping'

May 5, 2020

Hello,
I have a '72 5000 with select-o-speed and the lever and cable have begun to slip. I've taken this assembly apart a few times and realigned it and tightened it, but the fix is short term and after a few shifts it slips again. The transmission itself has been strong and aside from this recent issue, I have no qualms with the SOS. I'm hoping that someone out there has some ideas on a permanent fix.

Thanks in advance, Dave

• Dave In Chattaroy
• Replies: 3
• Forum: Ford