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Old 06-26-2020, 01:55 PM   #1
i82much
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Front driveshaft question

I have a 72 K10 longbed. I was under the truck today and I noticed that the driveshaft has a threaded piece on it close to the transfer case. What is that thing for?
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Last edited by i82much; 06-26-2020 at 02:18 PM.
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Old 06-26-2020, 02:49 PM   #2
57taskforce
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Re: Front driveshaft question

That’s for the slip joint in the shaft. It holds the grease seal in place and also keeps the shaft from overextending.
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Old 06-26-2020, 02:57 PM   #3
i82much
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Re: Front driveshaft question

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Originally Posted by 57taskforce View Post
That’s for the slip joint in the shaft. It holds the grease seal in place and also keeps the shaft from overextending.
Ok thanks. It was a little loose and it probably hasn't seen grease in a long time, so I'll go ahead and grease that zerk.
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Old 06-26-2020, 09:34 PM   #4
57taskforce
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Re: Front driveshaft question

That’s a good idea, if the slip joint goes dry it will wear out pretty quickly. That collar should be pretty snug.
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'57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888
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'98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's
‘87 IROC-Z all original 50K mile survivor TPI 305 IROC Blue
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Old 06-26-2020, 10:32 PM   #5
1976gmc20
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Re: Front driveshaft question

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Originally Posted by 57taskforce View Post
That’s a good idea, if the slip joint goes dry it will wear out pretty quickly. That collar should be pretty snug.
I didn't grease my 73 enough, and the splines got to where they would jump under a heavy pull in low range. I had to get a new driveshaft
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Old 06-29-2020, 12:25 AM   #6
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Re: Front driveshaft question

thanks everyone. amazing how much knowledge is available here!
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