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Old March 13th, 2008, 07:36 PM   #1
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Default Closed knuckle vs. open???

I've been looking for a front 3/4 ton axle. I found one for cheap but its a closed knuckle mid 70s Ford F250...any problems with the closed knuckle axles? I don't know much about these, just that they went away from this style.
Thanks for any info!
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Old March 13th, 2008, 07:39 PM   #2
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They are a pain in the ass to service and repair on the trail.

I'd avoid it.
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Old March 13th, 2008, 08:25 PM   #3
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On anything domestic, closed knuckle means old, limited parts, non generally worth it.

closed knuckles generally have worse turning radius than open knuckle parts.


If you are running mud bogs or deep water, they are superior at keeping water and muck out of things, if you can live with the strength and other issues.


Messy as hell to service them.
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Old March 13th, 2008, 09:03 PM   #4
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Closed knuckle usually means smaller u-joints than it's open knuckle brother
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Old March 13th, 2008, 09:50 PM   #5
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Yea...I figured there was a reason for the price. Any way to convert to open by chance? Its $40.
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Old March 13th, 2008, 10:16 PM   #6
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Quote:
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Yea...I figured there was a reason for the price. Any way to convert to open by chance? Its $40.

Not worth it unless you need an anchor.

To convert you will need to cut off the knuckles and weld on open knuckles. it's most likely a dana 44, easily had
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Old March 14th, 2008, 05:58 AM   #7
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like others have said, keep searching.
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Old March 24th, 2008, 01:24 PM   #8
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has anyone ever converted a closed knuckle 44 to disc??
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Old March 24th, 2008, 10:55 PM   #9
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has anyone ever converted a closed knuckle 44 to disc??
a buddy of mines messin around with that on a 70, its in the thinkin process
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