 Brake line differences - support through strut |
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| echocanyons |
 Feb 2 2025, 01:21 PM
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#1
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Advanced Member  Group: Benefactors Posts: 2,105 Joined: 24-December 02 From: Bay Area, CA Member No.: 7 Region Association: Central California 
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I’m swapping the struts/brakes from a 75 Carrera to a 75 914.
The hole that the rubber brake line at the strut end doesn’t seem to be large enough to support my existing rubber brake line. Also, there looks to be two different support clips. Could someone educate me to the difference and what I should be using to connect my brake lines to a 1975 strut. Attached thumbnail(s) 
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| bdstone914 |
Feb 2 2025, 02:31 PM
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#2
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bdstone914 Group: Members Posts: 4,801 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
The hole size should be the same in both struts. the type of hardware needs to match the rubber line type. both should use the later U shaped clips.
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| 914Sixer |
Feb 2 2025, 05:35 PM
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#3
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914 Guru Group: Members Posts: 9,089 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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73-76 use this clip, It is thin, early cars and 914-6 use thick one
Attached thumbnail(s) 
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| willieg |
Feb 3 2025, 03:48 PM
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#4
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Member Group: Members Posts: 145 Joined: 13-August 18 From: Pleasant Hill Member No.: 22,389 Region Association: Northern California
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When I put some 911 brake parts on my 74 914, I found the hole on the strut to be too small. Some finetinkering with a dermal tool enlarged the hole. Probably not best way but it worked.
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| iankarr |
Feb 4 2025, 02:00 AM
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#5
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The wrencher formerly known as Cuddy_K Group: Members Posts: 2,548 Joined: 22-May 15 From: Heber City, UT Member No.: 18,749 Region Association: Intermountain Region
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| Montreal914 |
Feb 4 2025, 09:23 AM
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#6
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Senior Member Group: Members Posts: 1,790 Joined: 8-August 10 From: Claremont, CA Member No.: 12,023 Region Association: Southern California
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^^^ This!
I contacted Eric Shea at PMB and he set me up with the correct lines for my conversion (3" strut in my case). |
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| Eric_Shea |
Feb 5 2025, 02:46 PM
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#7
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PMB Performance Group: Admin Posts: 19,299 Joined: 3-September 03 From: Salt Lake City, UT Member No.: 1,110 Region Association: Rocky Mountains  |
Hey Kelly,
Early (70-72) cars used a spring clip that integrates with the hard line to create spring loaded pressure to hold it in place. These are generally tabs (strut and rear control arm) with a simple hole in them. The body clip was different. Early 914 struts share the same front hose as 911's from 64-89. So... two different clips (upper drawing in your diagram). Later cars use the clips that Mark pictured above on everything. These will have a journal in the line end and the tab on the body, strut or rear control arm will have a forked or split tab for those type of clips (lower drawing in your diagram). Why? Economy of scale always dictates production and products. Why use two clips when we can use one (in bulk) and save time and money. This affects people like you who have late model rear arms and added 911 front struts. That combination of brake line kits do not exist (remember, 911's used the early style clip through the 89 MY) So... you need Early 914 front lines or 64-89 911 front lines to make that work. Hope that makes sense. |
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| echocanyons |
Feb 23 2025, 11:50 AM
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#8
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Advanced Member Group: Benefactors Posts: 2,105 Joined: 24-December 02 From: Bay Area, CA Member No.: 7 Region Association: Central California
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Thank you all.
Eric, that is great info. I appreciate your effort to put that together. I am trying to add the 911 struts so I will look for the lines that go with them. |
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