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Old 06-16-2009, 08:18 AM   #1
rodney fisher
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brake conversion

Hey I was wondering if the power disc brakes on a 1974 chevy c10 could be converted over to a 1969 chevy c10 that has drum brakes?
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Old 06-16-2009, 01:41 PM   #2
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Re: brake conversion

Does any body know?
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Old 06-16-2009, 02:36 PM   #3
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Re: brake conversion

It will work. The best way (and easiest way) to do it is remove the entire front crossmember from the donor truck. You will also need the master cylinder, power booster and proportioning valve.
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Old 06-16-2009, 05:45 PM   #4
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Re: brake conversion

Thanks I appreciate your help!
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Old 06-16-2009, 10:37 PM   #5
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Re: brake conversion

Welcome Rodney! You can search the FAQ's section for related stuff.There will be way more info than you need but you should find a write up on exactly this swap.
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Old 06-16-2009, 10:46 PM   #6
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Re: brake conversion

Hey the 69 has only two brake lines coming off the valve proportioner one for the front and one for the back. And the 74 has four lines coming off the valve proportioner for each wheel. Can I use the valve that is on the 69 or do I have to use the one off the 74 and run four lines to each wheel?
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Old 06-17-2009, 10:49 AM   #7
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Re: brake conversion

Hey I searched the faq's but I didn't find anything that would help
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Old 06-17-2009, 12:14 PM   #8
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Re: brake conversion

You should definitely not use the 69 valve. Not sure how to adapt the 74 to your application. You could use one from a 71-72 or an aftermarket disc/drum.
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Old 06-17-2009, 12:35 PM   #9
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Re: brake conversion

Quote:
Originally Posted by rodney fisher View Post
Hey I searched the faq's but I didn't find anything that would help
You will need to use the valve off of the 74 along with the front lines associated with it.

http://67-72chevytrucks.com/vboard/s...d.php?t=209956

http://67-72chevytrucks.com/vboard/s...d.php?t=215980

These should answer any of your questions.
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Old 06-18-2009, 07:56 PM   #10
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Re: brake conversion

Hey I just now noticed that my 69 has six lugs and the 74 has five. Is there a thread on that conversion process? The other 2 threads on the brake conversion has helped a lot thanks
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Old 06-18-2009, 09:09 PM   #11
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Re: brake conversion

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Originally Posted by rodney fisher View Post
Hey I just now noticed that my 69 has six lugs and the 74 has five. Is there a thread on that conversion process? The other 2 threads on the brake conversion has helped a lot thanks
Specifically what conversion. Take the 74 disc and make them 6-lug or make the rear end 5-lug? LMC, CPP, and ECE all carry bolt on 6-lug front discs and any 71-72 truck rear end will swap into yours.
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Old 06-18-2009, 09:47 PM   #12
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Re: brake conversion

So I can just buy 6 lug rotors
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Old 06-18-2009, 09:50 PM   #13
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Re: brake conversion

So I can take the 74 disc that are 5 lug and just buy some 6 lug rotors from a parts store?
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Old 06-18-2009, 10:14 PM   #14
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Re: brake conversion

Do I just tell them that its for a 74 with 6 lugs
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Old 06-18-2009, 10:32 PM   #15
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Re: brake conversion

I don't know of any parts stores that carry them. Strictly specialty aftermarket:

http://www.earlyclassic.com/catalog.aspx?ProductId=205

http://www.classicperform.com/Store/...ruck/CP4R5.htm

http://www.lmctruck.com part # 34-3223 DISC BRAKE ROTOR
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Old 06-18-2009, 10:51 PM   #16
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Re: brake conversion

Here is what I am doing to have more pics if it helps
Attached Images
  
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Old 06-18-2009, 11:24 PM   #17
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Re: brake conversion

cpp has the 6 rotors that will work with the 74 parts its the same rotor just 6 lug instead of 5
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Old 06-19-2009, 02:42 PM   #18
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Re: brake conversion

Is cpp classic performance parts
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Old 06-19-2009, 09:43 PM   #19
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Re: brake conversion

Quote:
Originally Posted by rodney fisher View Post
Is cpp classic performance parts
yessir
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