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Old 12-28-2013, 11:55 AM   #1
1965chevyc20
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1965 C20 Trailing Arm Bushing same as C10?

I'm planning to have my rebuilt Chevy 14 bolt rearend powder coated before insalation into my `65 C-20 and thought I might take the trailing arms along. Started looking for new bushings for the remount and can't find any 3/4 tons listed anywere. So, my question is: Are these bushings the same specifications for 1/2 & 3/4 ton? Size and carrying capacity?

Thanks in advance for your time and imput.
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Old 12-29-2013, 12:48 PM   #2
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Re: 1965 C20 Trailing Arm Bushing same as C10?

Anyone?
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Old 12-29-2013, 01:36 PM   #3
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Re: 1965 C20 Trailing Arm Bushing same as C10?

I have a '64 C-20, and I used Energy Suspension bushings. They only called out 1 part number, and I figured that they're all the same. The Energy Suspension bushings just swap out the rubber guts for urethane inserts and leaves the outer bushing shell still in the arm.
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Old 12-29-2013, 01:38 PM   #4
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Re: 1965 C20 Trailing Arm Bushing same as C10?

Classic Parts lists the bushings in both rubber and Poly. They specify for coil spring rear suspension trucks 60-72 all as same part number.

That's worth what you paid for it. I'm on my iPad or I'd download the Energy Suspension catalog and look closer.
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Old 12-29-2013, 02:30 PM   #5
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Re: 1965 C20 Trailing Arm Bushing same as C10?

I think the only difference in the truck arm suspension between a 1/2 and 3/4 ton is the helper springs on the C-20.
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Old 12-29-2013, 03:39 PM   #6
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Re: 1965 C20 Trailing Arm Bushing same as C10?

Quote:
Originally Posted by panhandler62 View Post
I think the only difference in the truck arm suspension between a 1/2 and 3/4 ton is the helper springs on the C-20.
There are slight differences in the trailing arms. The 3/4 ton arms have reinforcement plates welded to them from the factory that the half ton units lack.
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Old 12-30-2013, 01:55 PM   #7
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Re: 1965 C20 Trailing Arm Bushing same as C10?

Found 3/4 ton bushings at Truck Stop (http://www.truckandcarshop.com/trucks60_72/t60_138.html). Called their customer service and they confirmed that they measured differently than the 1/2 ton, though they declined to elaborate.

Thanks all.
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Old 10-09-2018, 03:48 PM   #8
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Re: 1965 C20 Trailing Arm Bushing same as C10?

What is the final verdict on this? Are the C20 bushings the same size as the C10's? I can't seem to find any solid confirmation, and I need to replace the ones in my '66 soon. By the time I get my crusty old ones out of the arms, I'm guessing there won't be enough left to correctly measure them and/or compare to new ones at the parts store.

None of the venders I'm familiar with list any bushings for a C20, and most of the listings for C10 bushings do not mention whether or not they will fit a C20.

The link 65chevyc20 shared for 3/4 ton bushings doesn't go to anything related to bushings, and the description from that vendor (or lack thereof) makes me wonder if that is correct in the first place.
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Old 10-19-2018, 06:59 AM   #9
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Re: 1965 C20 Trailing Arm Bushing same as C10?

Bushings are the same for C10's-C20's. Trailing arms are the same, the only difference being beef up plates welded to C20 trailing arms. I'd suggest investing in a shop and assembly manual, they have the info, (part numbers).
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Old 10-19-2018, 09:19 AM   #10
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Re: 1965 C20 Trailing Arm Bushing same as C10?

Excellent, that's what I wanted to hear!

I do have a factory service manual, '66 supplement, and factory assembly manual, but several threads like this one imply they are different, usually without evidence. I was just looking for confirmation from someone like yourself with first hand knowledge.

Thanks!
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