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I need a u-joint bolt

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Old Jun 4, 2010 | 08:42 PM
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Default I need a u-joint bolt

anybody in the bucks county, pa area have 1 of the bolts that hold the strap on for a u-joint? the little 8mm bolt. please let me know.
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Old Jun 4, 2010 | 08:51 PM
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It's not metric, it should be 5/16 x 24 pitch. You could probably find a strap bolt kit quicker for about $10, but I can mail you one if you can't find something.
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Old Jun 4, 2010 | 10:10 PM
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It looks like Advance has a kit for $5. Just double check it is right.

http://shop.advanceautoparts.com/web...S_634028378___
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Old Jun 5, 2010 | 02:29 PM
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thanks guys. i got the bolt today, from contemporary corvette. josh, i checked the kit at advance. the bolts were not the right size.
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Old Jun 5, 2010 | 05:14 PM
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Originally Posted by jbutta
thanks guys. i got the bolt today, from contemporary corvette. josh, i checked the kit at advance. the bolts were not the right size.
Well thats good to know. I figured when I did mine I'd play it safe and wire wheel the old screws and reuse them.
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Old Jun 5, 2010 | 05:36 PM
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...a little future info -

http://www.chevytrucksalesandstuff.c...Strap_Bolt_Set

Last edited by Joe C; Jun 5, 2010 at 07:07 PM.
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Old Jun 5, 2010 | 05:42 PM
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Originally Posted by joshwilson3
Well thats good to know. I figured when I did mine I'd play it safe and wire wheel the old screws and reuse them.
to be on the safe side, add thread locker if reusing originals. i have several NOS bolts (GM #14046904) and they come from the factory with some sort of thread locker applied to the threads.
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Old Jun 5, 2010 | 05:49 PM
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Originally Posted by Joe C
to be on the safe side, add thread locker if reusing originals. i have several NOS bolts (GM #14046904) and they come from the factory with some sort of thread locker applied to the threads.
Yeah, I'm gonna use the blue threadlock by Permatex. That stuff is expensive. Something around $6 for a micro small tube.
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Old Jun 5, 2010 | 06:12 PM
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Originally Posted by C4boy
It's not metric, it should be 5/16 x 24 pitch. You could probably find a strap bolt kit quicker for about $10, but I can mail you one if you can't find something.
it is metric M8 x 1mm x 20mm
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Old Jun 5, 2010 | 07:53 PM
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Originally Posted by joshwilson3
Yeah, I'm gonna use the blue threadlock by Permatex. That stuff is expensive. Something around $6 for a micro small tube.
JW, Not nearly as expensive then to repair damage if the bolt flies out on you because you skimped out on a $6.00 tube of lock-tite!

The short shaft can do some serious damage in a short period of time if you let it....

$6.00 now doesn't sound so expensive, does it?

Gibby
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Old Jun 5, 2010 | 07:53 PM
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Joe, there are 2 strap kits that fit a 1350 series yoke. One fits only a 1350 and is metric, the other fits some 1350s & 1410 series. Everything is the same except for the bolts. The later uses a 5/16 x 3/4", 24 pitch, grade 8 bolt. It also has a higher torque threshold. These are the one for Vettes.

I went crazy trying to find these bolts when I needed them, even going to a commercial fastner place nearby. I ended up getting some metric & SAE nuts and bolts to match up to the strap bolts in order to find the right sizes, and differentiate between the 2.. The rest I verified through catalogs. The parts stores will all show the metric bolts - which don't fit. The threads on both are so close that the metric bolts will feel like the right ones, except they'll go in very tight and eventually strip or gall. I say this with 95% certainty to save anyone else the confusion.

If anyone's not sure, buy a 5/16 24 pitch nut and a 8mm x 1.0 pitch nut and you'll see the difference.
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Old Jun 5, 2010 | 08:40 PM
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Originally Posted by ZRWHAT
JW, Not nearly as expensive then to repair damage if the bolt flies out on you because you skimped out on a $6.00 tube of lock-tite!

The short shaft can do some serious damage in a short period of time if you let it....

$6.00 now doesn't sound so expensive, does it?

Gibby
Well, I did say I was gonna put blue threadlock on it. I've already got some I've had for a while. But may have to pick up another small tube of it. Just commenting on the expensive price of the small tube. I may see if I can find a larger bottle of it instead of that small tube at the parts store.

I do like puting blue threadlock on bolts that need it. Though, the PO had the ujoints replaced and when I pulled the bolts. They had the factory drilock on them, so the PO didn't clean it off and put new thread lock. As I believe that drilock is shot when you pull the bolt.

Also, all the caliper bolts had the factory drilock on them too. But I went ahead and cleaned them off with a wire wheel and put blue thread lock on them.
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Old Jun 5, 2010 | 09:44 PM
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Originally Posted by C4boy
Joe, there are 2 strap kits that fit a 1350 series yoke. One fits only a 1350 and is metric, the other fits some 1350s & 1410 series. Everything is the same except for the bolts. The later uses a 5/16 x 3/4", 24 pitch, grade 8 bolt. It also has a higher torque threshold. These are the one for Vettes.

I went crazy trying to find these bolts when I needed them, even going to a commercial fastner place nearby. I ended up getting some metric & SAE nuts and bolts to match up to the strap bolts in order to find the right sizes, and differentiate between the 2.. The rest I verified through catalogs. The parts stores will all show the metric bolts - which don't fit. The threads on both are so close that the metric bolts will feel like the right ones, except they'll go in very tight and eventually strip or gall. I say this with 95% certainty to save anyone else the confusion.

If anyone's not sure, buy a 5/16 24 pitch nut and a 8mm x 1.0 pitch nut and you'll see the difference.


i just checked the parts catalog, and it seems that the drive shaft uses 5/16x24 bolts you've identified. the halfshafts use the metric bolts i've identified. damn, you learn something new every day...
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Old Jun 5, 2010 | 10:54 PM
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Actually, and now that you mention it, I'm talking about the half-shafts . I assume too often since the half-shaft joints are always the problem. I don't know for certain if the driveshaft strap bolts are different. I can tell you that the catalogs I've come across are wrong, in that they all list a metric bold for the half-shaft straps..
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Old Jun 5, 2010 | 11:20 PM
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Originally Posted by C4boy
Actually, and now that you mention it, I'm talking about the half-shafts . I assume too often since the half-shaft joints are always the problem. I don't know for certain if the driveshaft strap bolts are different. I can tell you that the catalogs I've come across are wrong, in that they all list a metric bold for the half-shaft straps..
I could be wrong, but I believe the driveshaft uses longer bolts at the differential. I think the slip yoke and driveshaft are connected via the same ujoint. I say that would be a pain pressing that ujoint in.

I noticed on the ujoint by the transmission, the grease has slung out of the caps. Though, I don't think those ujoints rotate in the caps, the whole ujoint just spins.
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