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Old 05-10-2016, 12:27 AM   #1
Expladv
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Location: Middletown, CA
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1970 C60 Clutch Fork/Linkage Repair

Hey y'all -

I've got a 1970 C60 dump truck that the clutch linkage broke on. I think I'm getting close. There's a bottom cover on the bell housing that I found and removed so I can see both sides of the clutch fork as well as the throwout bearing and pivot ball. I think I need a clip for where the fork attaches to the pivot ball and/or spring tabs where fork attaches to bearing and maybe a return spring too. I'm also confused on how to secure the push rod to the clutch fork. I have the pushrod nut that seats against the fork, but I can't figure out how to secure the rod in place on the other side of the fork; not threaded and no pin hole..

Any advice, diagrams, reference links welcome.

Thanks!
Sarah
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Old 05-10-2016, 09:46 PM   #2
Expladv
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Re: 1970 C60 Clutch Fork/Linkage Repair

OK, here are some pics:
  • Looks like there was a weld repair to extend/fix pushrod
  • The pics showing the linkage fit together and fork on the bearing are with the pedal all the way to floor (pedal will not spring back)
  • Does anyone know if this model should have a return spring? or a clip on pivot ball?
  • Fork part#: GM 3765373
Any help would be much appreciated.
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Old 05-10-2016, 10:00 PM   #3
Expladv
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Re: 1970 C60 Clutch Fork/Linkage Repair

And here's a pic of the truck herself. I've wanted to own a dump truck since I was a little kid. Finally fulfilled that dream.
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Old 05-10-2016, 11:42 PM   #4
jumpsoffrock
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Re: 1970 C60 Clutch Fork/Linkage Repair

If anybody can confirm that the mechanical configuration would be the same on my '67 327 with a SM-420, I could snap pictures of mine. I can try in the morning.

As for technical assistance or numbers and diagrams....I'm useless.
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Old 05-12-2016, 01:07 AM   #5
rkn463
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Re: 1970 C60 Clutch Fork/Linkage Repair

That is a good looking truck. Links to factory service manuals here: http://67-72chevytrucks.com/vboard/showthread.php?p=5781194

Welcome to the forum!

-Richard
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Old 05-16-2016, 07:35 PM   #6
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Re: 1970 C60 Clutch Fork/Linkage Repair

I snapped this picture for you after removing the cab from my truck, looking down from above. I hope it helps.

-Richard
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