1963 BW T10 Slip Yoke

[Harry S.]

Happy Holidays,

Any one have a few pictures of a 63 T10 16 spline slip yoke.

Thanks

[Harry S.]

1963 Transmission Slip Yoke

Well, I need to replace the yoke on my April built 63 with a BW T10. Best I can determine the part number is 3818916. I also determined that they are impossible to find.

Anyway, anyone have a recommendation for a source. I'd assume LIC and Paragon and others have the same supplier, then it just boils down to price. If not does anyone know of a US supplier?

Thanks
Happy Holidays

[Joe L.]

Re: 1963 Transmission Slip Yoke

Well, I need to replace the yoke on my April built 63 with a BW T10. Best I can determine the part number is 3818916. I also determined that they are impossible to find.

Anyway, anyone have a recommendation for a source. I'd assume LIC and Paragon and others have the same supplier, then it just boils down to price. If not does anyone know of a US supplier?

Thanks
Happy Holidays

Harry------


The part number for the 1963 BW T-10 yoke was GM #3818916. It was discontinued without supercession in May, 1975. So, it's not surprising that NOS examples are hard to find.

[Richard G.]

Re: 1963 BW T10 Slip Yoke

Would this one work for you Harry?


Its on Ebay, but not under any application.
16 Spline 1310 Series GM Early Transmission Slip
The vendor has 8 of them.




Here is another one for $110.

https://www.ebay.com/itm/Spicer-Slip-Yoke/283227588570?epid=1092993729&hash=item41f1ae07da:g:IQIAAOSwHnJb0ZxH

Here is another $99 and free shipping;
https://www.ebay.com/itm/Transmission-Yoke-Powerglide-Automatic-Manual-2-3-1331-GM-1956-1962-cars/132812987136?hash=item1eec455b00:g:s9QAAOSwxB5bvBt T


Above parts are Not GM but might function just fine while you look for another.

I have a GM one in the tail shaft of a 60 Corvette 3 Speed.
If you are interested in it PM me.
Rick

[Harry S.]

Re: 1963 BW T10 Slip Yoke

Thanks, but that;s for a C1

Harry

[Harry S.]

Re: 1963 BW T10 Slip Yoke

I found a 63 16 spline slip yoke. There is no plug in the end. I've got conflicting input. The driveshaft shop says it can't be replaced. The seller, whom I trust, says it's a simple swap out of the plug in the existing yoke.

Thoughts please.

[Timothy B.]

Re: 1963 BW T10 Slip Yoke

Harry,

You will have to excuse me but what plug?

[Joe L.]

[Harry S.]

Re: 1963 BW T10 Slip Yoke

Yea, found an NOS one, still in the box, on an obscure muscle car website. I ordered it, they called and verified they had it and will ship it tomorrow. Very good price, lower than expected.

https://autopartsobsolete.com/

[Richard G.]

Re: 1963 BW T10 Slip Yoke

I went and got a picture of the yolk from my 63.



The plug is the one in the middle of the spline at the end closest to the u-joint.
It is barely visible in the picture.
I have replaced others (not 63 Corvette) and I just purchased a soft plug and drove in in with a little Loctite to keep it there.
The yolk should be missing a spline. This is so the air between the end of the output shaft and the back of the yolk has somewhere to go.
The cap is there so GM wasn't broaching splines into a blind hole.
I also looked at the 60's Corvette yolk. It's way different as the joints are pressed in not bolted.
I would like to know it there are other differences between the 63 yolk and the other C2's besides the spline count.
Would I be correct if I made the assumption this was changed when GM went to the Muncie in late 63.

[Joe L.]

Re: 1963 BW T10 Slip Yoke

I went and got a picture of the yolk from my 63.



The plug is the one in the middle of the spline at the end closest to the u-joint.
It is barely visible in the picture.
I have replaced others (not 63 Corvette) and I just purchased a soft plug and drove in in with a little Loctite to keep it there.
The yolk should be missing a spline. This is so the air between the end of the output shaft and the back of the yolk has somewhere to go.
The cap is there so GM wasn't broaching splines into a blind hole.
I also looked at the 60's Corvette yolk. It's way different as the joints are pressed in not bolted.
I would like to know it there are other differences between the 63 yolk and the other C2's besides the spline count.
Would I be correct if I made the assumption this was changed when GM went to the Muncie in late 63.

Richard------


ALL 1963-82 Corvettes used saddle-type u-joint yokes for both the transmission and differential yokes. 1963-67 as well as 1968-70 with manual trans used 1310 series u-joints with u-bolts/nuts for u-joint retention. For these, 1964-70 transmission yokes were 26 spline.

1968-70 with M-40 as well as all 1971-82 used yokes designed for 1330 series u-joints. These yokes have a wider saddle than the above but with the same size trunnions. However, for these yokes, the u-joints are retained by straps with hex bolts. These transmission yokes were 32 spline.

As far as passenger cars go, I know of no non-Corvette use for the saddle-type yokes. However, it's possible they were used for some truck applications. About trucks, I know not.

[David B.]

Re: 1963 BW T10 Slip Yoke



In the category of useless information: The "plug" PN 3714559 was originally designed 7-19-54 crimped into part #3818917 with the following description: "To withstand direct hydraulic pressure of 900 lbs. per sq. in. without loosening or leaking SAE #30 crankcase oil"