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Lower control arm shaft
#761462 May 27th 2020 12:08 pm
Joined: Nov 2019
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frediz Offline OP
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Hi,

as shown here, I removed the shaft and bushings.
Though, I don't know which strategy to go for :
  • reuse the shaft and replace the bushings. The point is, there are metal rings and other thin bushings along the shaft as shown below on the picture. And I don't know where I can get those. Any idea ?
  • I also saw this MAS CSK90135 shaft which is reported as compatible with g20/g2500 but looks different with mine or this other CSK90135PR Dorman .
  • the "rare parts" shaft and everything : this is my last option given the price


I saw lots of people here talking about that issue, but I don't know at the end how they did.
Those recurrent lower control arm related issues are a real pain in the neck.
Any advice ? Thanks a million

F.

Attached Files DSC_0789_1024.jpg
Re: Lower control arm shaft
frediz #761465 May 27th 2020 12:47 pm
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What year is yours? A shaft made for a C20 pickup of the exact same year should do the trick. Here is one I found that fits 67-86 C20 pickup and looks very similar.

https://www.performanceonline.com/1...2n_nK4X8H71_J_eJ3oeagbBeG1IaAtfHEALw_wcB


[Linked Image]
Re: Lower control arm shaft
frediz #761469 May 27th 2020 2:40 pm
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You have the 2 inch shaft, If you buy the bushing kits you can rebuild the shaft. No one is making the oddball 2 inch shaft anymore that i know of except rare parts. The two you show are the 1.5 inch ones. I don't know why gm did this. They still make the bushings.

Re: Lower control arm shaft
jcd74 #761494 May 28th 2020 2:20 am
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frediz Offline OP
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Originally Posted by kursed
What year is yours? A shaft made for a C20 pickup of the exact same year should do the trick. Here is one I found that fits 67-86 C20 pickup and looks very similar.

mine is 87 ...

Originally Posted by jcd74
You have the 2 inch shaft, If you buy the bushing kits you can rebuild the shaft. No one is making the oddball 2 inch shaft anymore that i know of except rare parts. The two you show are the 1.5 inch ones. I don't know why gm did this. They still make the bushings.

Yes right. But I also need the other parts on the shaft : see those rings below. I could re-use the metal one though they're not in a great shape. But for the rubber ones, they're worn out and I cut them any way to be able to push the big bushings out.

I link here that other discussion on the same topic where you sent some info jcd74, but tuner4life didn't follow up. I'll ping him there.

I also thought of machining a modified shaft that would only hold the 2 bushings, but that may cost as much as the rareparts one.
Need to check that out.

Attached Files DSC_0803_1024.jpgDSC_0804_1024.jpgDSC_0805_1024.jpg
Re: Lower control arm shaft
frediz #761502 May 28th 2020 8:43 am
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I just redid my control arms. They are just like yours. I bought new bushings but reused the rest. Just cleaned them up. Mine still looked good. Not torn, nicked or worn out.

Re: Lower control arm shaft
frediz #761504 May 28th 2020 9:22 am
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As I mentioned in my other thread, I still haven't torn mine apart to come up with a solution.. But I still feel like someone with machine shop connections could replicate these shafts in solid for way less than Rare Parts sells them for, or we could possibly just use the C10 style shafts with hopefully only minor tweaks to the subframe.. Unfortunately it's probably going to be a while longer before I get around to figuring this out


[Linked Image]
Re: Lower control arm shaft
frediz #761510 May 28th 2020 10:40 am
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frediz Offline OP
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Frosty, I'm glad you didn't have to go through this. The main trouble for me, is replacing those thin rubber bushings/rings (sorry I don't know the exact word).

Tuner4life, oh ok, that explains you didn't give news. I'm personally not ready to modify the crossmember to adapt other shafts, but
I like the idea that by doing it, you can then change the shaft with a cheaper standard one if needed in some time (ok, not soon and if this other shaft is still produced).

Re: Lower control arm shaft
frediz #761550 May 28th 2020 10:45 pm
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Looks like this might be what you're looking for, frediz:

https://www.ebay.com/itm/NOS-79-80-81-82-73-CHEVROLET-G10-G20-STEERING-LOWER-CONTROL-ARM-SHAFT-BUMPER-GM/272767310601?epid=655684165&hash=item3f8232db09:g:GrwAAOSwXetd7~-m

From the label on the packaging, the rubber infused metal washers are called "bumpers."

Last edited by Frosty; May 28th 2020 10:57 pm.
Re: Lower control arm shaft
tuner4life #761551 May 28th 2020 10:48 pm
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tuner4life, I hope my LCA shafts are still good. I have not installed them yet but will see what happens when I do. They looked good but a visual inspection is just a part of it.

Re: Lower control arm shaft
frediz #761552 May 28th 2020 10:53 pm
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Here is a LCA Shaft kit but it seems like it only has one rubber infused metal washer (bumper). Also, what does the LCA have to do with vacuum brakes? Is there something different about them?

https://www.ebay.com/itm/TRW-13228A-Control-Arm-Shaft-Kit-2-DIA-W-Vacuum-Brakes-1973-1990-G10-G20-G30/184216564830?hash=item2ae429b45e:g:jCgAAOSwlgVecp1G

Last edited by Frosty; May 28th 2020 10:58 pm.
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