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Old 11-07-2009, 12:38 AM   #1
dropped65c20
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c20 to c10 conversion?

I am looking to change my c20 over to a c10 and was wondering if i have to change the whole front suspension over. I would think that the upper and lower control arms are the same, so i figure maybe i could just change out the drums and whatever else right there and that should be good right?
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Old 11-07-2009, 12:50 PM   #2
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Re: c20 to c10 conversion?

Are you converting to disc brakes at the same time?

C20 lower control arms are different than C10 lowers.
The balljoint hole in the C20 lower control arm is larger.
(Upper and lower balljoints are also different)
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Last edited by lolife99; 11-07-2009 at 12:51 PM.
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Old 11-07-2009, 01:30 PM   #3
Ackattack
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Re: c20 to c10 conversion?

The outer tie rods are also different sized
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Old 11-07-2009, 03:14 PM   #4
Ronm909
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Re: c20 to c10 conversion?

I did this to my 67,,, bought a 87 suburban for $500.. swapped out everything. complete front crossmember with all suspension.. and axle,, instant 5 lug and dics brakes....
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Old 11-07-2009, 03:31 PM   #5
dropped65c20
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Re: c20 to c10 conversion?

Quote:
Originally Posted by lolife99 View Post
Are you converting to disc brakes at the same time?

C20 lower control arms are different than C10 lowers.
The balljoint hole in the C20 lower control arm is larger.
(Upper and lower balljoints are also different)
Naw, i was gonna stay with drums for now. I ended up getting a full suspension with the c20 from a 63 c10 when i bought it.
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Old 11-07-2009, 03:34 PM   #6
dropped65c20
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Re: c20 to c10 conversion?

Is it safe to say that i probally should change out everything when i convert over to 1/2 ton?
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Old 11-07-2009, 04:06 PM   #7
Ronm909
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Re: c20 to c10 conversion?

hey I got the stock sindle from that 87 suburban with brakes on it, I was going to use it but I ended up buying a drop spindle kit with all new disc brakes from CPP at the last pomona swap meet.. you can have it.. not sure how far you are from me,,,
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Old 11-07-2009, 08:55 PM   #8
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Re: c20 to c10 conversion?

Quote:
Originally Posted by dropped65c20 View Post
Is it safe to say that i probally should change out everything when i convert over to 1/2 ton?
yes.
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Old 11-08-2009, 11:28 PM   #9
dropped65c20
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Re: c20 to c10 conversion?

Quote:
Originally Posted by Ronm909 View Post
hey I got the stock sindle from that 87 suburban with brakes on it, I was going to use it but I ended up buying a drop spindle kit with all new disc brakes from CPP at the last pomona swap meet.. you can have it.. not sure how far you are from me,,,
Five lug or 6?
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Old 11-08-2009, 11:35 PM   #10
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Re: c20 to c10 conversion?

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Originally Posted by dropped65c20 View Post
Five lug or 6?
87 Burb is going to be 5 lug.
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Old 11-08-2009, 11:39 PM   #11
lolife99
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Re: c20 to c10 conversion?

Quote:
Originally Posted by dropped65c20 View Post
Naw, i was gonna stay with drums for now. I ended up getting a full suspension with the c20 from a 63 c10 when i bought it.
63 C10 will be 6-lug drum brake.
The 5-lug 'burb suspension will require you to change to disc brakes.
(Master cylinder and porportioning valve also)
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Convert to disc brakes.
http://67-72chevytrucks.com/vboard/s...d.php?t=444823
WTB: Radio Delete Plates and clips.

Last edited by lolife99; 11-08-2009 at 11:42 PM.
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Old 11-09-2009, 10:22 PM   #12
Ronm909
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Re: c20 to c10 conversion?

its a 5 lug set up, got the matching master cyclinder with booster too..

Last edited by Ronm909; 11-09-2009 at 10:24 PM.
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Old 11-10-2009, 11:16 AM   #13
Mike Bradbury
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Re: c20 to c10 conversion?

Early Classics has a lower control arm ball joint that fits the C20 arm and the C10 spindle. I believe they have the tie rod end conversion as well.
I am doing the same conversion and am using all the C20 equipment but converting to lowered C10 5 lug spindles and disc brakes.
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Old 03-08-2018, 11:31 PM   #14
KevinK7
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Re: c20 to c10 conversion?

Resurrecting...( a really old thread) , But there's some good information here.

Since my '68 is a C20 what are my options (staying 8 lug) to get disc brakes up front? ...and a drop?

Ideally I would like to drop the truck some and also get disc brakes. I believe staying 8 lug (since I am finding some 8 lug wheels I like) might be the easier route to go since I could just stick with the rear axle I have now.


Also, ...a major kudos to LoLife99 (Kieth) for putting this together:
Convert to disc brakes.
http://67-72chevytrucks.com/vboard/s...d.php?t=444823

A huge help indeed. Thanks!

Last edited by KevinK7; 03-08-2018 at 11:40 PM.
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Old 03-09-2018, 05:53 AM   #15
lolife99
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Re: c20 to c10 conversion?

www.performanceonline.com sells 8-Lug drop spindle kits.
That’s the best option for disc brakes and a correct method to drop your truck.
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Convert to disc brakes.
http://67-72chevytrucks.com/vboard/s...d.php?t=444823
WTB: Radio Delete Plates and clips.
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Old 03-09-2018, 10:00 AM   #16
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Re: c20 to c10 conversion?

Quote:
Originally Posted by lolife99 View Post
www.performanceonline.com sells 8-Lug drop spindle kits.
Thatís the best option for disc brakes and a correct method to drop your truck.
Thank You for that link , ...looks like the path I will go
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