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02-25-2019, 11:41 PM | #1 |
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Join Date: Feb 2009
Location: Northern Nevada
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5/16" bolt in a 3/8" hole for upper ball joints?
71 C-10
Just getting ready to install the upper ball joints when I noticed the Moog parts uses 5/16" bolts. The old rivets were 3/8". The A-arms are a tight 3/8", they were powder coated. It wouldn't take much to drive a 3/8" bolt. That said the ball joint plates won't take a 3/8" bolt. So by using 5/16" bolts there's some slop in the A-arm. Maybe it doesn't matter, thanks to a nut and cotter pin? Heck I don't know Is this common? are they the wrong ball joints? Install as-is works fine?Thanks.
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Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assm. guide "kit" for restoring the truck from ground up. With assys, the guide accts for 1000s details, OEM identifications & part numbers, written in short order. 700+ images of assm., illust., charts, and points of interest. Much of the info. applies to all 67-72 GM trucks, and to a lessor degree all 67-72 GM vehicles. My build thread, and more on the guide https://67-72chevytrucks.com/vboard/...d.php?t=730025 |
02-26-2019, 01:31 AM | #2 |
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Location: Colfax-California
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Re: 5/16" bolt in a 3/8" hole for upper ball joints?
I've noticed that also, just get them tight and it's going to be aligned anyways. Once the pressure is on I don't think it's going to move
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02-26-2019, 10:04 AM | #3 |
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Re: 5/16" bolt in a 3/8" hole for upper ball joints?
Thanks a bunch.
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Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assm. guide "kit" for restoring the truck from ground up. With assys, the guide accts for 1000s details, OEM identifications & part numbers, written in short order. 700+ images of assm., illust., charts, and points of interest. Much of the info. applies to all 67-72 GM trucks, and to a lessor degree all 67-72 GM vehicles. My build thread, and more on the guide https://67-72chevytrucks.com/vboard/...d.php?t=730025 |
02-26-2019, 04:04 PM | #4 |
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Re: 5/16" bolt in a 3/8" hole for upper ball joints?
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02-26-2019, 11:19 PM | #5 |
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Join Date: Feb 2009
Location: Northern Nevada
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Re: 5/16" bolt in a 3/8" hole for upper ball joints?
Ooooooooops, too late Installed the spindles and coils today.
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Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assm. guide "kit" for restoring the truck from ground up. With assys, the guide accts for 1000s details, OEM identifications & part numbers, written in short order. 700+ images of assm., illust., charts, and points of interest. Much of the info. applies to all 67-72 GM trucks, and to a lessor degree all 67-72 GM vehicles. My build thread, and more on the guide https://67-72chevytrucks.com/vboard/...d.php?t=730025 |
02-26-2019, 11:50 PM | #6 |
Who Changed This?
Join Date: Jan 2013
Location: Simi Valley, CA
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Re: 5/16" bolt in a 3/8" hole for upper ball joints?
You used lock washers, right?
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~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
02-27-2019, 01:26 AM | #7 |
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Join Date: Mar 2003
Location: Colfax-California
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Re: 5/16" bolt in a 3/8" hole for upper ball joints?
all the ones I've installed had were locking
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02-27-2019, 03:58 AM | #8 |
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Re: 5/16" bolt in a 3/8" hole for upper ball joints?
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02-27-2019, 01:19 PM | #9 |
Senior Member
Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,162
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Re: 5/16" bolt in a 3/8" hole for upper ball joints?
Yes, comes with the kit. The bolts are fine thread too.
May be in a manual someplace. Moog mentions nothing about thread locker.
__________________
Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assm. guide "kit" for restoring the truck from ground up. With assys, the guide accts for 1000s details, OEM identifications & part numbers, written in short order. 700+ images of assm., illust., charts, and points of interest. Much of the info. applies to all 67-72 GM trucks, and to a lessor degree all 67-72 GM vehicles. My build thread, and more on the guide https://67-72chevytrucks.com/vboard/...d.php?t=730025 |
02-27-2019, 04:22 PM | #10 |
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Join Date: Nov 2014
Location: Bigfork, Montana
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Re: 5/16" bolt in a 3/8" hole for upper ball joints?
If you used lock washers you're good, no need to add thread locker. If, for peace of mind, you want to add thread locker, Permatex or Loctite (can't remember which, maybe both) make a penetrating grade that can be applied after installation.
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02-27-2019, 08:22 PM | #11 |
Senior Member
Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,162
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Re: 5/16" bolt in a 3/8" hole for upper ball joints?
Interesting. I'll check on occasion, see if it moves. The beauty of recording the torque setting Should be easy enough to change later.
My boys showed up yesterday, and the extra 400 lbs + the engine made it easy to install stock height coils, no compressor required. Looks like I have a compressor to get rid ofI'll never use it.
__________________
Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assm. guide "kit" for restoring the truck from ground up. With assys, the guide accts for 1000s details, OEM identifications & part numbers, written in short order. 700+ images of assm., illust., charts, and points of interest. Much of the info. applies to all 67-72 GM trucks, and to a lessor degree all 67-72 GM vehicles. My build thread, and more on the guide https://67-72chevytrucks.com/vboard/...d.php?t=730025 |
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