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Brake Lines [message #246653]

Mon, 07 April 2014 11:51

Jon payne

Messages: 495
Registered: May 2008

Karma: 1

Senior Member

Hello all,

What size is the brake line from the combo valve to the rear brakes? Are they 5/16" or 1/4"? I know the rear brake lines from the hoses to the wheel cylinder are 3/16" but the line from the combo valve to the rear is bigger.

Thanks,

Jon

Jon Payne
76 Palm Beach
Westfield,IN

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Re: [GMCnet] Brake Lines [message #246698 is a reply to message #246653]

Mon, 07 April 2014 18:22

USAussie

Messages: 15912
Registered: July 2007
Location: Sydney, Australia

Karma: 6

Senior Member

Jon,

Ref: Parts Book 78Z / Page 4-14 / Key 6 - Tube Assy

Note in the small line drawing the clamp around that line is defined as Pro. Loc. (1/4 dia).

Pro = Procure
Loc = Locally

It's safe to assume that the line is 1/4".

Plus that's what I remember it is.

Regards,
Rob M.
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426

-----Original Message-----
From: Jon Payne

Hello all,

What size is the brake line from the combo valve to the rear brakes? Are they 5/16" or 1/4"? I know the rear brake lines from the
hoses to the wheel cylinder are 3/16" but the line from the combo valve to the rear is bigger.

Thanks,

Jon

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426

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Re: [GMCnet] Brake Lines [message #246713 is a reply to message #246698]

Mon, 07 April 2014 20:12

Jon payne

Messages: 495
Registered: May 2008

Karma: 1

Senior Member

Thanks Rob!
Jon

Jon Payne
76 Palm Beach
Westfield,IN

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Re: Brake Lines [message #246720 is a reply to message #246653]

Mon, 07 April 2014 20:58

Steve

Messages: 506
Registered: September 2013
Location: East Greenville, Pa

Karma: 1

Senior Member

I used the nickel/copper lines when I did mine. What a treat to work with as opposed to steel or stainless. Very easy to bend and shape. No more steel for me.

1978 GMC Royal
Eastern Pennslyvania
1968 Chevrolet C20 396 Camper Special
1969 Chevrolet C20 Camper Special
1985 Buick Electra Park Avenue
1992 Camaro 25th Anniversary Heretage Edition Black

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