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Old 06-02-2009, 09:25 PM   #1
dazza
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Black lockout?

Does anybody know what year these are for? I've searched everywhere for the part number - 15580903 and have found nothing.

Thanks
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Old 06-02-2009, 10:02 PM   #2
Joesjunk
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Re: Black lockout?

Looks like a lock out hub for an 86-87 1/2ton. A Friend of mine's dad had a new 86 with those hubs on it.
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Old 06-02-2009, 10:54 PM   #3
chevychase
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Re: Black lockout?

Damn JOESJUNK is good! I did a quick google "GM 15580903" and got:

GM FRONT DIFFERENTIAL LOCK OUT HUBS 15580903 K5
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Old 06-03-2009, 02:54 AM   #4
dazza
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Re: Black lockout?

That's what I did... but it didn't show a year. From what I can tell they will fit 69-86.
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Old 06-03-2009, 06:03 AM   #5
Blazer1970
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Re: Black lockout?

They should fit any internal hub Dana 44 or any 10 bolt.
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Old 06-03-2009, 08:57 AM   #6
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Re: Black lockout?

My`90 Blazer had them.They were through`91.
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