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Old 05-16-2012, 01:38 PM   #1
sunk99
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69 Disc brake conversion questions

Converting my 69 to front disc brakes and have a few questions. Do I need to change my brake lines to the front of the cross member from the rear? It was factory power brakes so do I need to change my master cylinder or prop valve and if so should I use 71-72 parts or later model parts? Thanks in advance.
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Old 05-17-2012, 10:23 AM   #2
N2TRUX
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Re: 69 Disc brake conversion questions

Anyone?
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Old 05-17-2012, 11:14 AM   #3
lolife99
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Re: 69 Disc brake conversion questions

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Originally Posted by sunk99 View Post
Converting my 69 to front disc brakes and have a few questions. Do I need to change my brake lines to the front of the cross member from the rear? It was factory power brakes so do I need to change my master cylinder or prop valve and if so should I use 71-72 parts or later model parts? Thanks in advance.
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You need to change the M/C and prop valve to a disc brake version.
71-72 parts here would be a direct bolt on.

There is no need to re-route the brake line.
You can buy direct bolt-on 63-70 standard spindles and drop spindles.

You will need to bend up a couple hard lines from the prop valve down to the crossmember.

Have you bought any parts for the conversion yet?

Read this thread:
http://67-72chevytrucks.com/vboard/s...68&postcount=4

Nates thread details installing disc brakes on a '69:
http://67-72chevytrucks.com/vboard/s...d.php?t=353633
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Keith

Convert to disc brakes.
http://67-72chevytrucks.com/vboard/s...d.php?t=444823
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Old 05-17-2012, 11:25 AM   #4
sunk99
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Re: 69 Disc brake conversion questions

I ordered my conversion from way2low2 and it is a Mcgauhy's kit but is only for the spindles out. So I will need to run new hard lines for the front brakes?
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Old 05-17-2012, 02:04 PM   #5
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Re: 69 Disc brake conversion questions

What size lines do I need to run from the prop.valve to the hose?
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Old 05-17-2012, 03:10 PM   #6
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Re: 69 Disc brake conversion questions

Your original line to the front hoses will work.
You just need a new line from the M/C to the tee on the crossmember.
It's either 3/16" or 1/4".
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Convert to disc brakes.
http://67-72chevytrucks.com/vboard/s...d.php?t=444823
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Old 05-17-2012, 03:53 PM   #7
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Re: 69 Disc brake conversion questions

Ok thanks lolife.
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