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05-16-2018, 03:07 PM
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#1 |
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Senior Member
 Join Date: Oct 2016
Location: Olympia, WA
Posts: 523
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Question on rear Disc brakes
Question on rear Disc brakes, are you running 3/16" line all the way back from the master cylinder/ proportioning valve, or are you running 1/4" from the master cylinder/ proportioning valve back to the rear shock cross member and teeing to 3/16" lines.
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05-16-2018, 06:00 PM
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#2 |
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Registered User
Join Date: Mar 2012
Location: Lakes Region NH
Posts: 3,200
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Re: Question on rear Disc brakes
The size of the tubing should be based on the volume of fluid needed for the caliper. If the calipers are single piston you can often get away with 3/16" all the way back. For multiple piston calipers it's more important to use larger line.
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05-16-2018, 06:24 PM
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#3 |
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Registered User
Join Date: Nov 2006
Location: Sutherlin Oregon
Posts: 502
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Re: Question on rear Disc brakes
It wouldn't hurt hurt to go 1/4. If it's a little bigger than you need, not a problem. The rubber lines from the axle to the calipers will be the size needed for the calipers and will restrict any extra.
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05-16-2018, 09:48 PM
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#4 |
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Registered User
Join Date: Mar 2012
Location: Lakes Region NH
Posts: 3,200
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Re: Question on rear Disc brakes
Also, if you install 1/4" line now you're covered if for some reason you decide to go with larger brakes later.
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05-16-2018, 11:40 PM
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#5 |
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Senior Member
Join Date: Oct 2016
Location: Olympia, WA
Posts: 523
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Re: Question on rear Disc brakes
I'm using the Single piston rear calipers from the 79-85 Eldorado, Toronado, Riviera.
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05-18-2018, 12:13 PM
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#6 |
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Registered User
Join Date: Jan 2012
Location: Motown
Posts: 7,680
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Re: Question on rear Disc brakes
my whole system is plumbed in 3/16" as recommended by inline tube for 4 wheel discs
__________________
cool, an ogre smiley  Ogre's 58 Truk buildhow to put your truck year and build thread into your signature shop air compressor timer |
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05-18-2018, 08:02 PM
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#7 |
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Registered User
Join Date: Jul 2007
Location: Toppenish, WA
Posts: 15,710
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Re: Question on rear Disc brakes
Best bet would be to figure out what the size of the brake lines to the rear of the Cad the calipers were intended for are and go from there.
__________________
Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around. |
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