quick drive shaft question
#1
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#4
As stated, nylock 3/8 fine thread. The original nuts+bolts are grade 5, replace with the same. Someone is going to chirp in and say get grade 8. If you use the original grade 5 bolts then put grade 5 nuts on them, simple as that. Something else in the drive line will break before those grade 5 bolts shear.
#5
Here are the ones I bought. Found them at Lowes. People in here told me to get Grade 8 so that is what I got and put on. I'm sure they have the same in Grade 5. Honestly though like Bundu said it doesn't matter, and something else will break long before you have a Grade 5/8 issue. And no, don't get the bolts if the old ones are OK.
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#7
I would have put the Grade 5 on if that is what people said. I checked around afterward though to make sure it would not be an issue, and confirmed it with a couple experts on the topics. Especially on that part, the force is a rotational and not the bolt being pulled away from the nut. I just think replacing them now would be worthless. I promise you that when my new drive shaft blows to pieces because of grade 5 vs 8 I will publicly say you were correct. I just don't see it happening in this rig. And one again, I'm not disagreeing I'm just saying "no biggie" on this one.
#8
It's not stripping in service that is the issue. Nuts are designed to fracture before the threads strip, when used with matching grade bolts.
When using mismatched bolts and nuts the threads can strip on torquing before the nut fractures. They can strip a lot, in which case you notice it and fit a new one (requiring removing the flange and replacing the bolt in the case of grade 8 nuts on output flange bolts). Or they can strip only slightly in which case they enter service in a defective condition and fail somewhere down the road.
When using mismatched bolts and nuts the threads can strip on torquing before the nut fractures. They can strip a lot, in which case you notice it and fit a new one (requiring removing the flange and replacing the bolt in the case of grade 8 nuts on output flange bolts). Or they can strip only slightly in which case they enter service in a defective condition and fail somewhere down the road.
#9
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endneu913
General Range Rover Discussion - Archived
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11-03-2007 03:46 PM