10 spline transmission yoke

[mighty midjet]

Cant seem to find one online and I need it to get my truck back on the road

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[STAG]

Six states I bet.

 

[mighty midjet]

Just got off the phone with them, not luck

 

[Tacoma]

Application might be SUPER helpful here.

 

[Shawn]

X2

 

[mighty midjet]

It the transmission output yoke on my 1951 chevy 3100, 4 on the floor

 

[Tacoma]

:facepalm:

What transmission is in it? What size is the shaft? etc etc. We're pretty good here, but we're not mind-readers. That MAY take the same yoke as an SM465, for instance. Or an NP205 transfer case. What looks like the speedo drive gear is going to be problematic there if you need to keep that. Your lack of pictures is really not helping anyone help you.

Not for nothing, but I doubt anyone would have ever guessed you were asking about a yoke for a 1951 Chevy.

 

[STAG]

I was wondering what the heck the "threads" were for. It looks like it was used as a sledgehammer.

 

[mighty midjet]

Sorry about the lack of info. I figured every one one take one look at the picts and go nope. The speedo is nice but I don't need to keep it. I'll take measurement of the shaft as soon as I can. I'm pretty sure the tranny is a SM420

 

[Tacoma]

Ok, now we're getting somewhere. IF that shaft is the same diameter and IF the speedo gear won't mess it up you might get away with a GM 10-spl yoke for some other application, and you should be able to find a seal that will work. Nearly all modern yokes seal against the OD of the yoke, which is why the speedo gear might be a problem.

edit: To be clear-- the seal rides on a turned portion of the yoke's OD.

 

[mighty midjet]

I was wondering what the heck the "threads" were for. It looks like it was used as a sledgehammer.

Ha yea they got smashed pretty good

 

[mighty midjet]

The yoke has no sealing surface.

 

[Tacoma]

This is why pictures tell a better story than "writing". I have no IDEA what your transmission looks like. Modern yokes generally have sealing surfaces. Hence, pictures would help SO MUCH.

 

[mighty midjet]

Here is a couple picts of the output on the tranny and the torque tube the yoke is inclosed in

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[mighty midjet]

Couldn't find my tape measure between games

 

[STAG]

What is the likely-hood of having it "rebuilt"... Adding steel with a MIG welder and "hardfacing wire" on the areas that are beat up, and then remachined/milled flat and holes redrilled/tapped.

 

[mighty midjet]

I thought about doing that. Not sure if it would anneal or make the cast brittle

 

[flexyfool]

I believe older 2WD SM420, SM465, all Spicer 18 and early 20 xcases use 10 spline.

Check out http://www.northerndrivetrain.com/category/cat_endyokes_splined_10splines_1-875-10Spline.html . It lists 20 different 10 spline yokes. The speedo spiral is probably pressed on to allow the manufacturer to use 1 yoke design for different axle ratios. A new yoke can be turned down and the old spiral pressed on.

 

[flexyfool]

Or, weld the old good splines section to the new good ears section of any old yoke that matches the U-joint. Just need some lathe work and a magician with TIG. Machine shops do this kind of stuff all the time for farm equipment. There's like 100 years of oddball PTO equipment that people need to keep running.

 

[mighty midjet]

Some promising leads on that website. Do really think it is safe to weld up and reshape the ears?