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Old February 8th, 2008, 08:27 AM   #1
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Default reuse ring gear bolts on 14b?

I've set up about a dozen ring and pinions but the install kits have always came with new ring gear bolts. The 14b kit does not and I know you are not supposed to but from those that have actually set up gears do you think it will really matter? Oh and its a 1999 axle with 60,000 miles on it if that matters, it hasnt been sitting in the weeds for 20 years or anything.

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Old February 8th, 2008, 09:57 AM   #2
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I have always reused them. That doesn't make it right I guess, but thats my .02
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Old February 8th, 2008, 01:57 PM   #3
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I had to reuse mine in my 30. Since the POS ones I got in my install kit pulled the threads off of them.
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Old February 8th, 2008, 02:20 PM   #4
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I always thought that the bolt stretches slightly when put into its optimum torque range thus giving it its strength. So with that, does a bolt lose its elatisity if never over tightened? I understand the thought of a lock nut and that they should not be reused, or at least understand that they lose their efectiveness after use, but a bolt should be fine. Maybe someone who is smarter than me (not too hard) could explain if I'm wrong. Till then If I get that far this weekend I'll re-use them. Thanks
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Old February 8th, 2008, 02:39 PM   #5
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Quote:
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I always thought that the bolt stretches slightly when put into its optimum torque range thus giving it its strength. So with that, does a bolt lose its elatisity if never over tightened? I understand the thought of a lock nut and that they should not be reused, or at least understand that they lose their efectiveness after use, but a bolt should be fine. Maybe someone who is smarter than me (not too hard) could explain if I'm wrong. Till then If I get that far this weekend I'll re-use them. Thanks
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Old February 8th, 2008, 02:40 PM   #6
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I have always reused them. That doesn't make it right I guess, but thats my .02
same here
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Old February 8th, 2008, 03:33 PM   #7
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Quote:
Originally Posted by Tab View Post
I always thought that the bolt stretches slightly when put into its optimum torque range thus giving it its strength. So with that, does a bolt lose its elatisity if never over tightened? I understand the thought of a lock nut and that they should not be reused, or at least understand that they lose their efectiveness after use, but a bolt should be fine. Maybe someone who is smarter than me (not too hard) could explain if I'm wrong. Till then If I get that far this weekend I'll re-use them. Thanks
Some fasteners are torque-to-yield, some aren't..


I've always reused ring gear bolts without issue.

Look at all the lock rite installs when you need to remove the ring gear. They don't include new ones.
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Old February 8th, 2008, 04:10 PM   #8
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good point Jesus . I figure the oem is better than aftermarket anyways. Thats it! Their going in in the morning. Thanks
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Old February 8th, 2008, 06:11 PM   #9
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Some fasteners are torque-to-yield, some aren't...
While I wouldn't hesitate to re-use ring gear bolts, provided they look OK, this is an interesting topic.

As you stated, some fasteners are torque-to-yield and some aren't. The ones that are not, surely you're not exceeding the bolts elastic deformation point (aka point at which it yields). Does anyone know if the torque-to-yield fasteners reach the very point which plastic deformation begins to occur at their torque spec??

The reason I ask is because pretty much everything has a saftey factor built into it, and most stuff is designed to work with loads that are below this point.....if it's the case, then the bolts haven't gone through plastic deformation and are theoretically sound.....and, theoretically sound they should have the same shear strength as when they were new (given they haven't undergone a lot of shock loading and other various abuse)
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Old February 8th, 2008, 07:17 PM   #10
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I have always reused 14 bolt ring gear bolts.
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Old February 8th, 2008, 07:39 PM   #11
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While I wouldn't hesitate to re-use ring gear bolts, provided they look OK, this is an interesting topic.

As you stated, some fasteners are torque-to-yield and some aren't. The ones that are not, surely you're not exceeding the bolts elastic deformation point (aka point at which it yields). Does anyone know if the torque-to-yield fasteners reach the very point which plastic deformation begins to occur at their torque spec??

The reason I ask is because pretty much everything has a saftey factor built into it, and most stuff is designed to work with loads that are below this point.....if it's the case, then the bolts haven't gone through plastic deformation and are theoretically sound.....and, theoretically sound they should have the same shear strength as when they were new (given they haven't undergone a lot of shock loading and other various abuse)
Dunno, I switched from Mechanical engineering to electrical many years ago...
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Old February 8th, 2008, 07:57 PM   #12
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even torque to yeild bolts can be re-used a limited amount of times. Example is Head Bolts. Ford design spec for current motors are 4 re-uses (5yeilds total) for gas engines, and 2 re-uses (3 total) for diesel engines.
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Old February 8th, 2008, 07:59 PM   #13
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Look at all the lock rite installs when you need to remove the ring gear. They don't include new ones.
When do you need to remove a ring gear to install a lock rite? or should I ask what axle would require it.
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Old February 8th, 2008, 09:25 PM   #14
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Some do. I know one of mine did and the other I just sanded down a ring gear tooth to slide the cross pin by. Why did Haggars name change to Jesus in my other response? Is CC bored or something?
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Old February 8th, 2008, 09:31 PM   #15
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Use them!!!!! I did!!!!!
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Old February 8th, 2008, 09:38 PM   #16
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i need a set if any one has some haha
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Old February 8th, 2008, 11:26 PM   #17
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Quote:
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i need a set if any one has some haha
14b ring gear bolts? What do they look like? I have a whole box of parts from Killer B that I am sure have some in it somewhere.
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Old February 9th, 2008, 07:14 AM   #18
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14b ring gear bolts? What do they look like? I have a whole box of parts from Killer B that I am sure have some in it somewhere.
They are IIRC 9/16" bolts that are just under 2" long.

Casey I will check a box of ring gear bolts I have here as well.
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Old February 11th, 2008, 05:48 PM   #19
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i need a set if any one has some haha

I do have a set for the 4.11 and down gear sets. They are a tad over 1.750" and will need a lock washer I do not have those.
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