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Old 01-11-2010, 11:50 PM   #1
Stitch
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c10 c20 suspension

what's the ride height difference between a c10 and c20 ....I'm going to be putting 3/4 ton suspension under the front and rear of my truck...and going to be putting the 14 bolt under the rear also...was wanting to know how much it was going to raise my truck up...thanks fellas...

Chuck.
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Old 01-12-2010, 12:33 AM   #2
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Re: c10 c20 suspension

there maybe a little difference
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Old 01-12-2010, 12:55 AM   #3
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Re: c10 c20 suspension

The 3/4 ton ball joints are larger in diameter than the 1/2 tons.
You'll have to change out the upper ball joints. O.E.M. ones are rivited in at 4 points around the joint to the upper control arm. If'n your's are bolted in, then they've been replaced sometime in the past. On the lowers you'll have to swap out the enitre lower control arm as the lower ball joints are pressed in and the diameter of the area where it presses into the lower control arm is smaller than the 3/4 ton ones. Also you'll have to swap out the spindles/streering knuckles.
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Old 01-12-2010, 08:37 AM   #4
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Re: c10 c20 suspension

I planned on changing everything from the control arms out to the spindles on the front...I have a 3/4 ton pickup and a 1/2 ton pickup...so I have all the parts to do it...I was just wondering about the ride height difference...

also, where can I get some quality ball joints and polygraphite bushings to rebuild the 3/4 ton front end before I put it up under the 1/2 ton pickup...thanks..

Last edited by Stitch; 01-12-2010 at 08:38 AM.
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Old 01-12-2010, 12:05 PM   #5
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Re: c10 c20 suspension

Quote:
Originally Posted by Fat Hoe View Post
I planned on changing everything from the control arms out to the spindles on the front...I have a 3/4 ton pickup and a 1/2 ton pickup...so I have all the parts to do it...I was just wondering about the ride height difference...

also, where can I get some quality ball joints and polygraphite bushings to rebuild the 3/4 ton front end before I put it up under the 1/2 ton pickup...thanks..

I put moog brand stuff in my c20. Never had a problem with moog. On the bushings, you don't need polygraphite, the bushings are steel from the factory. the only rubber in the front end is the swaybar bushings. I don't know what the ride height is for a comparison though.

Here's the best pis I have. This is my c20 with LD 3/4 ton front springs and HD 3/4 ton rear springs. All stock with a 32" tire
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Old 01-12-2010, 01:50 PM   #6
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Re: c10 c20 suspension

78 Chevyrado thanks for the info.



where's the cheapest place to get moog ball joints for my c20 suspension?

Last edited by Stitch; 01-12-2010 at 01:51 PM.
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Old 01-12-2010, 02:59 PM   #7
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Re: c10 c20 suspension

I got all did my whole front end all at once, and got all moog stuff, but I got some of it at oreilly's, some of it at advance auto, and some of it at rockauto.com. Buying it from 3 places like that, I think I figured I saved $150 over buying it all from just one place. Just price it around at the local places, and be sure to check rockauto.com--great customer service.
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Old 01-12-2010, 03:29 PM   #8
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Re: c10 c20 suspension

You could ask the parts store if they will price match. The local O'Rielys does. Why don't you just measure the height of the 3/4 ton? Then you will know how high your half ton will be. If you want to know the difference, measure both.
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Old 01-12-2010, 03:44 PM   #9
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Re: c10 c20 suspension

if you look at the part numbers for front springs, C10/C20, the numbers are the same.

Last edited by grinch4om; 01-12-2010 at 03:47 PM.
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Old 01-12-2010, 06:51 PM   #10
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Re: c10 c20 suspension

the c20 has not motor and trans in it...I thought about that, but it isn't going to work...

also, thanks again chevyrado
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Old 01-13-2010, 11:36 AM   #11
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Re: c10 c20 suspension

The spring part number are for HD 1/2 ton and LD 3/4 ton springs. The HD1/2 and LD3/4 are the same and the HD3/4 and LD1-ton springs are the same. The springs that are for the 1/2 ton and 3/4 ton are what came stock on my 3/4 ton, it had the LD springs. If you get the 1-ton springs, basically they don't flex. might as well have put solid metal in there....lol
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Old 01-13-2010, 05:07 PM   #12
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Re: c10 c20 suspension

I'd say the front will be at most an inch lower with the engine and trans in the truck.
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Old 01-13-2010, 07:48 PM   #13
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Re: c10 c20 suspension

thanks Damien...that gives me something to look at...now I can go measure...also, they wheels on the 3/4 ton are 16.5" whereas the rallys I have on the diesel now are 15s of course....so that should raise it some also...I want it to look beefier, but I don't want it to look like a lifted 2wd if you get my drift...
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Old 01-13-2010, 08:05 PM   #14
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Re: c10 c20 suspension

also, the 3/4 ton has a sway bar on it...do you think it would best be served on the diesel that will have the 3/4 ton suspension under it and be at stock height or on the crewcab that will have 1/2 ton suspension and be static dropped 6/8 or roundabout there...thanks fellas...

Chuck.
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Old 01-13-2010, 08:26 PM   #15
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Re: c10 c20 suspension

If you have to choose, Id say the lowered one. otherwise it may lean and drag in places it wouldn't while driving straight.
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Old 01-13-2010, 09:05 PM   #16
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Re: c10 c20 suspension

will it work with the truck lowered 6/8....that's the only thing I'm worried about...
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