Hot Rods I need a slip yoke...and some advice.

I have a goofy transmission I plan to install this winter and I'm having a fit figuring out a slip yoke.

It came out of a '76 Gremlin and the front half is a Ford 3.03, the back half is a Lay**** de Normanville planetary gear OD.

I have 25 splines and the am measuring about 1.087"- 1.09" inches on the "peak to peak" measurement at the output shaft. I ordered a ****er slip yoke (Part # 2-3-15461X) that shows 25 splines and a spline diameter of 1.113". I was worried it was going to be a smidge big but it won't fit over my output shaft.
https://www.actionmachineinc.com/products/2-3-15461x?variant=9492577484852

The problem is that ALL of the 25 spline yokes I see have those same measurements.

Any thoughts on what I need...or who may have one?

Thanks in advance.

 

look at Volvo stuff? (they used the OD, as did some British cars)

or look at AMC stuff.

 

Tried Denny’s driveshafts?

 

I’ve got the same trans for a future project
Curious as well

 

I did not contact them...The one I called was CCI and the guy wasn't very helpful. He was telling me that I needed one that was out of production but when he gave me the measurement that he was 100% sure of, it was wrong...but that same measurement matched the OD of the one shown above from Action Machine...so I went with that.
I'll try Denny's if Action Machine isn't helpful.

 

I'd call that transmission pretty neat, and pretty rare!

 

Whoops...Thanks Squirrel. The British cars used a bolted flange off the back of the ******. This was the Lay**** guru's first time seeing one with splines instead of a bolted flange. Not sure on the Volvo's.
This is something AMC cooked up. I asked on one of their forums and nobody seemed to know.

 

Here's a before and after for reference.

 

When all else fails, I'd just pay the money and find a competent person or company to cut a piece to your needs or design. Otherwise I'd slip on the idea and go with something else (stupid pun, "yokes" on me).

 

An old thread on these transmissions on a ford forum stated he got a slip yoke from driveline service in Las Vegas

no part number listed
https://www.ford-trucks.com/forums/587414-mystery-trans-ford-euro-od.html

 

I am running that exact same setup in my avatar roadster. It came out of a same year Pacer. I took the trans to a transmission shop in Lancaster and the counter man gave me a used slip yoke from a mid 60s Mustang. It fits perfectly and has given me good service since I put it on the road in 2009. I asked AMC guys and got a blank look. Most never knew that the transmission/overdrive was a rare 3 year option on Pacers, Gremlins, and Hornets from 75-77. Not many were made. The trans is a Ford 3.03 Full syncro three speed and the overdrive is the later Lay**** De Normanville unit with an American output shaft of 25 splines. I converted mine to a top shifter trans using the Jeep T 150 shift cover. It all worked out well, and the shifter is within 1" of where the original 32 shifter came out of the floor. The trans is just about bullet proof and so is the overdrive. It was used on Jaguars, Aston Martins, Volvos, and other high end European cars. The only thing unique is the adapter from the trans to the overdrive. Gearvendors still produces that overdrive and has anything you need for it. But, it has been behind my hot rod 354 hemi all this time and nary a wiper from it.

 

Falcon 1964 and 1965 with a 4 speed top loader used a 25 spline yoke that was unique to the Falcon transmission. It was even possible some early Mustangs got this trans as well. They were famous for breaking if you launched hard with sticky tires. 3 speed top loaders and later 4 speeds used a 28 spline output shaft with a matching yoke. Many early Falcon top loaders were converted to the 28 spline output and the old yokes were usually discarded cause no one wanted them. Check with the Falcon guys, they may have one laying around.

 

I put an early Ford 3.03 transmission in my '50 Ford to allow for a syncronized low gear. The output shaft was 25 spline instead of the more common 28 spline. Depending on the rear bushing size in the housing for the slip yoke one of these may fit your o/d unit. One is 1 3/8 inch dia. and the other is 1 1/2 inch. Mine took the 1 1/2 inch but yours may not. Follow the links and see what is offered. Good luck

https://fortwayneclutch.com/product...nsmission-driveshaft-slip-yoke-sku-2-3-8431x/

https://www.dennysdriveshaft.com/p1..._slip_yoke_1310_series_25_splines_with_1.html

 

Hmmmm
I got an 8 inch ford rear emd a while back with a driveshaft.
Might check to see if it fits.

 

Here's a post from 2022 that has more info about this neato transmission:

https://www.jalopyjournal.com/forum...h-a-3-speed-toploader-anyone-have-it.1279511/

 

Let me check at work. I may have one.

 

Wheeltramp...if you can find one let me know. Thank you for looking.
Nothing back from the place I bought the first yoke from...their website says to email them to get faster responses. I'll be patient.
If Wheeltramp doesn't have one, and I don't get a good answer from Action Machine, Denny's will be getting a call.

 

Boy...Denny's Driveshft's "Contact Us" is ****. It tells you that sending them an email is your best bet...doesn't give you an email address and relies on an online form...and the form gives you an error when you try to send ask your question.
I'll try calling whenever I get a chance.

Thanks again.

 

Hey deyomatic shoot me a text tomorrow from 8-4 as I keep forgetting to look.6618780676

 

For what ever its worth, back at the end of the last century, Dodge 4x4 trucks that came with a flange u joint that bolted to the trans and the normal rear u joint and also many trucks that had a center driveshaft carrier bearing also had a slip joint someplace in the center of the drive shaft. Some of those shafts are pretty short, but others are pretty long. I would think that slip joint could be added to an existing driveshaft just behind the transmission yoke.

 

Gene- that is something to keep in my back pocket, if I can't find the slip yoke. The Brit and Volvo units had a bolted flange and, while expensive to have this guy take it apart again to replace the output shaft with a Brit/ Volvo one, it might be the answer.

For those waiting in suspense...Wheeltramp Brian sent me one that I was hoping would work but alas, it seems to be the same application as the unit that I sent back to Action Machine. Action is going to measure another one that they have and if it's larger he'll send it. If they don't have it, I'll be checking with Denny's. I might just call them anyway.

 

Paging Anthony Myrick...
Does YOUR trans have a seal installed at the tailshaft? If so, can you measure the Inside Diameter of that seal...is it 1.375" or 1.5"????

I'm wondering if my ****** guy put the wrong seal in mine and I'm using the wrong measurement in my search.

Thanks.

 

I’ll try to in the morning
I’ll look and see

 

Maybe you could pop the seal out and measure the I.D. of the bushing in the tailshaft.

 

Sent ya a PM. Here’s a pic for the HAMB sleuths. The number came up with wrong measurements on a quick google search

now the funny part. My dial calipers are MIA so my back up pocket slide is what you see here. Might help

probably the smallest output I’ve seen.

 

I ran into the same problem on a Jeep output shaft. The yoke they sell has a Toyota application but the spines are cut deeper. I sent the output shaft to Moser engineering and they recut the spline to match the Toyota yoke.. It cost me like $40 to have it done.

 

Does this mean that pile might make it up to New Hampshire or maybe Maine......?

 

That's the idea, old boy!

 

Well that might be an option...that's WAY cheaper than I would have thought...I have an exploded view diagram somewhere (I think) so maybe I'll see how that looks.

 

Yoke #3 does not fit. This one came from CJ Pony parts and in the comments section a customer had said that it fit his 25 spline T10...which is what DeuceMac said he was pretty sure was the application that he used. This shaft is 1.5"...my seal is 1.375"....Anthony's seal is 1.375". Do we have the right seal(s)?

I found SKF Seals has this Seal Finder page that you can enter measurements so I picked up a couple that I think will work for a 1.375" shaft and ordered one for a 1.5" shaft. Pretty handy website so I figured I'd share it. If my current seal is 1.375" then is that the same size as the bushing in the tailhousing, or would that be closer to 1.5"?

https://www.skfextranet.com/crsealsfinder/

I'm about to throw it into the Connecticut River.