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12 bolt yoke ???

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Old Aug 31, 2008 | 07:16 PM
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Default 12 bolt yoke ???

I purchased a used 12 bolt and 3.5" Aluminum driveshaft for my car about a month ago. I installed it over the weekend. Everything was going smooth until it came time to install the driveshaft. The drive shaft did not come with a transmission yoke (is this called a slip yoke?), so I thought I could use my stock one, wrong. The caps on the universal joint are too big for my stock transmission yoke (slip yoke?). So what do I do? Can I get a transmission yoke (slip yoke?) that fits my T56 and the universal caps I have, or should I try to get a different universal joint with two different cap sizes. Should I go ahead and upgrade the factory transmission yoke (slip yoke?) anyway??? Or is that wasted money?

Also can someone verify a transmission yoke is the same as a slip yoke so I don't have to keep typing out both. Sorry for the long read all help is appreciated
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Old Sep 1, 2008 | 07:50 AM
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Give me a call in the morning, I can get you the correct yoke. 260 244-4808. Bob
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Old Sep 1, 2008 | 09:05 AM
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I'll call you in the morning. Thanks.
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Old Sep 2, 2008 | 03:13 PM
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Called this morning and this afternoon left two messages. Can you give me a call (502) 245-3683.

Last edited by Black 99 Bird; Sep 2, 2008 at 03:30 PM.
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Old Sep 2, 2008 | 04:14 PM
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you'll need a 2 size universal joint. assuming your new DS is 1350 you'll need a 1350/1310 joint.
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Old Sep 2, 2008 | 04:14 PM
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I guess you guys are closed now. Can you send me a PM or e-mail with more info about this yoke, my car has been on jack stands since Saturday.
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Old Sep 2, 2008 | 04:21 PM
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Originally Posted by LS1>girlfriend
you'll need a 2 size universal joint. assuming your new DS is 1350 you'll need a 1350/1310 joint.

Maybe that is the way I should go. The caps in the after market DS measure 1 3/16". So the factory is 1310 and the other caps I have are 1350? Also my factory slip yoke does not look to good, is this a problem? It has close to 100K on it and is rusted and the rubber parts are dried out and cracked.

Anyone one have a part # for a 1350 slip yoke for a T56?
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Old Sep 2, 2008 | 04:41 PM
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My stock yoke is 7" long, but the one I found that I think will work is only 6" long?

http://store.summitracing.com/partde...5&autoview=sku

Here is another one that might work.

http://store.summitracing.com/partde...50+4294844460+

Or should I just get this:

http://store.summitracing.com/partde...p?part=PCN-348
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Old Sep 2, 2008 | 05:01 PM
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Here are some pics of my current yoke. The arrows show where the cracks in the rubber are.
Attached Thumbnails 12 bolt yoke ???-picture-013.jpg   12 bolt yoke ???-picture-014.jpg  
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Old Sep 2, 2008 | 05:03 PM
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Also, what is the deal with the flat spot on the inside. Looks like their should be another spline there?
Attached Thumbnails 12 bolt yoke ???-picture-012.jpg  
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Old Sep 3, 2008 | 07:59 PM
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the rubber was pretty cracked up on mine too and ive actually looked inside the slip yoke on my t-56...weird. i also dont remember what the cap diameters are for different series joints anymore. anyway, i would just get the 1310/1350 joint assuming thats the series on your DS.

sorry i couldnt be more help. did you try posting this in the transmission section?
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Old Sep 4, 2008 | 05:37 AM
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I'll post up in the tranny section, thanks for the idea.
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Old Sep 4, 2008 | 05:38 AM
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Also, LS1>girlfriend, are you still running your stock yoke?
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Old Sep 4, 2008 | 04:44 PM
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napa part number P447,,,about 26 bux for the 1310/1350 conversion U-joint that attaches the rear of your stock DSD to your 12 bolt yoke...
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Old Sep 4, 2008 | 05:10 PM
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I have a new driveshaft. It uses the same 1350 caps the 12 bolt uses. The problem is my factory slip yoke needs the 1310 caps. Thats no big deal because I can still use the conversion u-joint you just mentioned. Problem is my factory slip yoke looks like a$$. I just purchased a aftermarket slip yoke from Moser. Look at my other post here:

https://ls1tech.com/forums/manual-transmission/981002-new-yoke-question.html
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