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Old 12-10-2018, 11:53 AM   #1
CKcollector
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K20 brake hoses

Anyone point me in the right direction to buying front brake hoses for my 68 K20? Stores keep giving me k10 ones .
Knuckle size is the problem between the two..
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Old 12-10-2018, 04:36 PM   #2
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Re: K20 brake hoses

The brake book I have shows from '68-70 K10-K20 use the same brake hose. But from your picture I can tell that isn't the stock axle that came on the front of a '68 K20, from the 4 bolt steering arm, it looks more like a dana 60 vs the dana 44 that came in the K20. You may want to start looking for K30 parts vs K20. I would for sure look into seeing what axle that is and go from there.
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Old 12-10-2018, 07:53 PM   #3
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Re: K20 brake hoses

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The brake book I have shows from '68-70 K10-K20 use the same brake hose. But from your picture I can tell that isn't the stock axle that came on the front of a '68 K20, from the 4 bolt steering arm, it looks more like a dana 60 vs the dana 44 that came in the K20. You may want to start looking for K30 parts vs K20. I would for sure look into seeing what axle that is and go from there.
I donít think K30 parts will be any help, there werenít any drum brake gm K30s ever built. The K30 came along in 76 or 77 long after disks were standard equipment.
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Old 12-10-2018, 08:08 PM   #4
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Re: K20 brake hoses

No its a 44. Just bigger knuckle And hubs.. the 1/2 ton line wont clear the 3/4 ton knuckle thats why the metal lines to wc. As for the 4 bolt steering arm. Both my k10/20 have them. Neither truck has had any rears changed..
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Old 12-11-2018, 12:19 AM   #5
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Re: K20 brake hoses

Inline tube might be able to make custom lengths - if you run out of options, might call them and ask. I know they made e-brake cables for me once, but I seem to recall hoses coming up in the conversation also. It was quite a few years ago, so not certain, but they had the capability to do some custom work.
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Old 12-11-2018, 06:40 AM   #6
CKcollector
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Inline tube might be able to make custom lengths - if you run out of options, might call them and ask. I know they made e-brake cables for me once, but I seem to recall hoses coming up in the conversation also. It was quite a few years ago, so not certain, but they had the capability to do some custom work.
Yeah I tried them. No good.. how are ppl restoring these trucks without changing brake lines?
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Old 12-11-2018, 09:36 AM   #7
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Re: K20 brake hoses

You might try Rockauto, take some measurements and check the spec,s .. good luck.
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Old 12-11-2018, 09:38 AM   #8
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You might try Rockauto, take some measurements and check the spec,s .. good luck.
Yup been there done that. Called restoration places. Dorman donít even have it..
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Old 12-11-2018, 11:09 AM   #9
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Re: K20 brake hoses

How long are the rubber hoses, both female ends?... what size are they...3/16"....and or 1/4".?
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Old 12-11-2018, 11:13 AM   #10
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How long are the rubber hoses, both female ends?... what size are they...3/16"....and or 1/4".?
Idk exactly but a nut goes through the frame into line..3/16 on other side?
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Old 12-12-2018, 10:17 AM   #11
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Re: K20 brake hoses

I believe all your metal lines in 68 should be 1/4, not 3/16.
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Old 12-12-2018, 10:36 AM   #12
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I believe all your metal lines in 68 should be 1/4, not 3/16.
In frame larger than these to ft wc...
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