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Old 07-09-2014, 10:26 PM   #1
69SCSS
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Quick u-joint question

What u-joint does the stock 12-bolt take? I had my driveshaft shortened and had new u-joints installed, but the guy put the wrong u-joint on. I'm guessing a '69 truck 12 bolt from a 1/2 ton would all have the same sized u-joint. Looks like it should be 3 5/8" wide? I'm talking at the pinion yoke where it attaches with the straps.

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Old 07-09-2014, 10:41 PM   #2
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Re: Quick u-joint question

If it fits the driveshaft but not the flange you will probably need a conversion joint. It has different dimentions on each side.
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Old 07-09-2014, 10:44 PM   #3
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Re: Quick u-joint question

Quote:
Originally Posted by Wrenchbender Ret View Post
If it fits the driveshaft but not the flange you will probably need a conversion joint. It has different dimentions on each side.
Right. I need to know what the pinion side would be. 1330?
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Old 07-10-2014, 12:58 AM   #4
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Re: Quick u-joint question

Most likely the pinion yoke is a 1310
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Old 07-10-2014, 03:06 AM   #5
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Re: Quick u-joint question

Just measured the width and it's 3.625 or 3 5/8. Definitely a 1330. Not sure if that's standard for a 12-bolt, guess they could have either.
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