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Old 04-22-2023, 08:08 PM   #1
saddletramp
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72 C-10 Help

Evening Guys I need some help here I'm rebuilding my front end on my C-10 I've replaced my Upper and lower control Arm bushings I'm looking in the shop manual here but I'm not getting the torque specs for the bushings can some one explain how much to torque them Thanks appreciate it
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Old 04-23-2023, 01:52 AM   #2
pjmoreland
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Re: 72 C-10 Help

It appears that there is a misprint in your manual. Here's that same section from the 1968 service manual.

Upper Bushings, 160 new, 95 used
Lower Bushings, 280 new, 135 (130) used
(ft-lbs)
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Old 04-23-2023, 11:09 AM   #3
saddletramp
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Re: 72 C-10 Help

Thank you Sir appreciate it
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Old 04-23-2023, 04:23 PM   #4
Rust_never_sleeps
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Re: 72 C-10 Help

I haven't had to do this yet, but there are quite a few threads where the torque specs don't necessarily match the actual effort to seat these things. Prolly worth reading a few for context.
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Old 04-23-2023, 07:20 PM   #5
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Re: 72 C-10 Help

Quote:
Originally Posted by Rust_never_sleeps View Post
I haven't had to do this yet, but there are quite a few threads where the torque specs don't necessarily match the actual effort to seat these things. Prolly worth reading a few for context.
Indeed. When I rebuilt the front end on my truck, the running torque on the lower control arm shaft nuts was above the "replace" torque spec. I ran them down until the torque went up, and left them at that. Nothing has backed off in the last 8 years.
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Old 04-23-2023, 09:51 PM   #6
saddletramp
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Re: 72 C-10 Help

Thanks for the help guys I've been thinking reading alot of threads one more ? what are the dimples for on the lower control are shaft Thanks again Great site
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Old 04-23-2023, 10:49 PM   #7
pjmoreland
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Re: 72 C-10 Help

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Originally Posted by saddletramp View Post
Thanks for the help guys I've been thinking reading alot of threads one more ? what are the dimples for on the lower control are shaft Thanks again Great site
There are alignment pins in the cross member that insert into the dimples.
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Old 04-23-2023, 10:52 PM   #8
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Re: 72 C-10 Help

The dimples are to locate the shaft on the truck. Look under the seat that the shaft sets in. You will see a dowel in one of them. The dowel must go in the dimple. Be shure & position the dimple on the correct side of the control arm.

George
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Old 04-23-2023, 11:09 PM   #9
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Re: 72 C-10 Help

Awesome Sir Thanks so much for all the response I've learned alot from site appreciate it
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