Author Topic: Putting a modern axles on a C10  (Read 10234 times)

Offline hladkib

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Putting a modern axles on a C10
« on: May 10, 2013, 05:17:42 pm »
I found a rear end on CL off a 2003 chevy 1500, I want to swap it on my C10. What will I have to do to get it on there? Change the spacing of the spring and shock mount.

Offline 79brent

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Re: Putting a modern axles on a C10
« Reply #1 on: May 10, 2013, 05:38:16 pm »
You will definitely have to move the shock/spring perches like you said and probably get a different U-joint on the back. Not sure what else you would have to change, curious to find out though.
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Offline 79brent

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Re: Putting a modern axles on a C10
« Reply #2 on: May 10, 2013, 10:14:55 pm »
Is it disc or drum brakes? If it's drum you might just be able to swap out the e-brake cables at the backing plate.
1979 Chevy C10 Silverado package. 350/350

"Lifes a garden DIG it"

Offline Irish_Alley

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Re: Putting a modern axles on a C10
« Reply #3 on: May 11, 2013, 08:33:12 pm »
should be disc
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Offline Irish_Alley

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Re: Putting a modern axles on a C10
« Reply #4 on: May 11, 2013, 09:00:34 pm »
another thing is the width yours should be about 63" the 03 is about 66" on the rear, gm made the rears smaller than the front so the rear would track the front. I dont think it would be that big of a problem but then why did gm do this in the first place, the front width of your truck is also about 66"
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Offline Blazin

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Re: Putting a modern axles on a C10
« Reply #5 on: May 12, 2013, 12:09:58 am »
 Whats the reason for swapping? What are you trying to accomplish? Lower gear? Posi? Yours blown up?
Alot less hassle to just get the correct rearend with the options your after.
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Offline blazing816

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Re: Putting a modern axles on a C10
« Reply #6 on: May 13, 2013, 08:24:32 am »
Alot less hassle to just get the correct rearend with the options your after.

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Offline hladkib

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Re: Putting a modern axles on a C10
« Reply #7 on: May 13, 2013, 07:57:02 pm »
The reason is because I have 2.73 gear now with drum brakes. The axle which I now own has 3.73 gears and disc brakes and a G80 locker. Just an upgrade

Offline Irish_Alley

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Re: Putting a modern axles on a C10
« Reply #8 on: May 14, 2013, 06:58:49 am »
im unfamiliar with going from disk to drum but dont you have to get a adjustable proportioning valve?
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Offline hladkib

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Re: Putting a modern axles on a C10
« Reply #9 on: May 14, 2013, 08:38:49 am »
I'm not sure what you mean Irish

Offline hladkib

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Offline Irish_Alley

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Re: Putting a modern axles on a C10
« Reply #11 on: May 14, 2013, 10:26:20 am »
what im saying is, disk afaik use more pressure than drum, so they might not work or work as good as they should.
check this out
http://wiki.answers.com/Q/Can_you_replace_rear_drum_brakes_with_disk_brakes
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Offline 81_Chevy

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Re: Putting a modern axles on a C10
« Reply #12 on: May 14, 2013, 11:43:42 am »
so they might not work or work as good as they should.

your right irish. they still "work" not alot, but they still work. you gotta get a master cylinder and proportioning valve that is made for a disc/disc setup and not a disc/drum.

i was gunna do this swap on my truck be i decided not because the expense since you cant just swap.

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Offline 79brent

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Re: Putting a modern axles on a C10
« Reply #13 on: May 14, 2013, 08:48:43 pm »
Don't they make a proportioning valve that "supposedly" fixes the problem? Might not work with the calipers from the truck though.
1979 Chevy C10 Silverado package. 350/350

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Offline 81_Chevy

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Re: Putting a modern axles on a C10
« Reply #14 on: May 15, 2013, 09:47:34 am »
i think they do.. but i haven't had any experience with

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81 Chevy K20 350 4" Rough Country lift ridin on 35's ; 2 12 inch Subwoofers w/ a custom interior

Eagle Scout - 2012 Proud to be one!