Rear Brake Line Rot - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 08-07-2006, 08:55 PM   #1
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Default Rear Brake Line Rot

I need to replace the rear hydraulic lines and proportioning valves to the rear drums. Has anyone done this and how much? Thanks in advance.
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Old 08-07-2006, 09:29 PM   #2
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Default Re: Rear Brake Line Rot

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Originally Posted by SD_421
I need to replace the rear hydraulic lines and proportioning valves to the rear drums. Has anyone done this and how much? Thanks in advance.
I just replaced a section of brake line at the passneger side rear wheel. Did this last weekend. I didn't do any proportioning valves.

For the line you'll need:

section of double-flared 3/16" brake line with fittings attached $5-6
3/16" flare unions ($5 for 2)
bending tool ($10)
tubing cutter (a must) ($6)
double flaring tool (another must...I had to buy after a LOT of searching...possible to rent) ($25-55)

With some practice it was not too hard to make a decent double flare. It was harder to do it on the line that was still on the car. I haven't had any leaks though.

If you need any more specifics I can help, as can many others who have done this.
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Old 08-07-2006, 09:44 PM   #3
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Default Re: Rear Brake Line Rot

Quote:
Originally Posted by bonnie94ssei
Quote:
Originally Posted by SD_421
I need to replace the rear hydraulic lines and proportioning valves to the rear drums. Has anyone done this and how much? Thanks in advance.
I just replaced a section of brake line at the passneger side rear wheel. Did this last weekend. I didn't do any proportioning valves.

For the line you'll need:

section of double-flared 3/16" brake line with fittings attached $5-6
3/16" flare unions ($5 for 2)
bending tool ($10)
tubing cutter (a must) ($6)
double flaring tool (another must...I had to buy after a LOT of searching...possible to rent) ($25-55)

With some practice it was not too hard to make a decent double flare. It was harder to do it on the line that was still on the car. I haven't had any leaks though.

If you need any more specifics I can help, as can many others who have done this.
Thanks for the look out, so I just replace the line before and after the valve (both of them), double flare done it before already have the cutter and a tube bender. Just got to head out to the dealer for the proportioning valves.
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Old 08-07-2006, 09:51 PM   #4
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I'm not familiar with replacing proportioning valves, but as far as the lines go, pretty much, just whatever you cut, double flare, and tighten with the unions (don't use compression unions).
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Old 08-07-2006, 09:54 PM   #5
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Please check out this thread regarding the size of your sig pic:

http://www.bonnevilleclub.com/forum/...ic.php?t=48230

Thanks!
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