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9 Bolt BW brake lines

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Old Sep 18, 2018 | 11:36 AM
  #1  
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From: Budd Lake nj
Car: 88 trans am gta
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Axle/Gears: 9 bolt 3:27
9 Bolt BW brake lines

Hey guys, I am going to be rebuilding and detailing the undercarriage of my 88 GTA this winter and was planning on installing stainless steel brake lines while I'm at it. The only problem is I can't seem to find a vendor that sells the brake line that runs across the rear axle for a 9 bolt rear. Everything I find is for the 10 bolt rear. Any ideas on where I can find this line pre bent for a 9 bolt with disc brakes?

Thanks,
Brian
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Old Sep 18, 2018 | 12:17 PM
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Axle/Gears: 3.45 9 Bolt
Re: 9 Bolt BW brake lines

I don't think anyone does since it was a low production item. I need to weld some brackets to my 9 bolt for the ends of the tubes, but the 10 bolt lines work well enough for the disc application on the 9 bolt
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Old Sep 18, 2018 | 12:44 PM
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Car: 90 Formula
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Re: 9 Bolt BW brake lines

I used a set of 10 bolt disc brake lines on my 9 bolt build and just had to tweak a little here and there for a precise fit.
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Old Sep 18, 2018 | 03:44 PM
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Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: 9 Bolt BW brake lines

The braking systems between the 9- and 10-bolt are the same. Check out the following:

https://braketubes.com

FRA8602SS- 84-88' CHEVY CAMARO/ PONTIAC FIREBIRD, W/ J65 REAR DISC BRAKES, W/ HOSE ON RIGHT SIDE (NO LEFT HOSE), REAR AXLE BRAKE LINE SET; STAINLESS

JamesC

Last edited by JamesC; Sep 18, 2018 at 04:14 PM. Reason: Additional info
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Old Sep 18, 2018 | 05:05 PM
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Re: 9 Bolt BW brake lines

Originally Posted by scooter
I need to weld some brackets to my 9 bolt for the ends of the tubes
Que? The brackets are generally just bolted down with big sheet metal screws.
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Old Sep 18, 2018 | 05:57 PM
  #6  
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Car: 92 Firebird
Engine: 4.8 LR4
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Re: 9 Bolt BW brake lines

Originally Posted by Drew
Que? The brackets are generally just bolted down with big sheet metal screws.
There are no brackets at all for the ends of the tubes, where they meet the hoses. I was going to make some and weld them on
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Old Sep 18, 2018 | 06:05 PM
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Car: 86 Imponte Ruiner 450GT, 91 Formula
Engine: 350 Vortec, FIRST TPI, 325 RWHP
Transmission: 700R4 3000 stall.
Axle/Gears: 9 Bolt Torsen 3.70
Re: 9 Bolt BW brake lines

Buy the line, tubing bender, and flaring tools and do it yourself.
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Old Sep 18, 2018 | 06:35 PM
  #8  
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Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: 9 Bolt BW brake lines

Originally Posted by GeneralDisorder
Buy the line, tubing bender, and flaring tools and do it yourself.
The expense and inconvenience probably outweighs the $55.20 for the above lines.

JamesC

Last edited by JamesC; Sep 18, 2018 at 06:45 PM.
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Old Sep 18, 2018 | 08:06 PM
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Re: 9 Bolt BW brake lines

Originally Posted by scooter
There are no brackets at all for the ends of the tubes, where they meet the hoses. I was going to make some and weld them on
By all means, fab some brackets, but sheesh, bolts are plenty sturdy, no need to fire up the welder.
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Old Sep 19, 2018 | 10:42 AM
  #10  
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From: Budd Lake nj
Car: 88 trans am gta
Engine: 305tpi
Transmission: 700r4
Axle/Gears: 9 bolt 3:27
Re: 9 Bolt BW brake lines

I will be purchasing the 10 bolt s.s. line in the near future. Thank you guys for all of the responses and for clearing that up for me.

-Brian
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Old Sep 19, 2018 | 01:30 PM
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Car: 92 Firebird
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Axle/Gears: 3.45 9 Bolt
Re: 9 Bolt BW brake lines

Originally Posted by Drew
By all means, fab some brackets, but sheesh, bolts are plenty sturdy, no need to fire up the welder.
Then I have to break out the drill, tap and die set. Burning the MIG for 2 seconds for each bracket is a lot less work
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Old Sep 19, 2018 | 04:50 PM
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Car: 1988 Trans Am GTA and 1979 Trans Am
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Transmission: 700R4
Axle/Gears: Borg Warner 9 bolt 3.27
Re: 9 Bolt BW brake lines

I believe Classic sells what you need.
https://www.classicindustries.com/sh...=brake%20lines
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Old Sep 19, 2018 | 07:06 PM
  #13  
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From: Budd Lake nj
Car: 88 trans am gta
Engine: 305tpi
Transmission: 700r4
Axle/Gears: 9 bolt 3:27
Re: 9 Bolt BW brake lines

Originally Posted by Reddragon88gta
I believe Classic sells what you need.
https://www.classicindustries.com/sh...=brake%20lines
I thought I checked Classic industries before but I guess I didn't look hard enough. That is what I am looking for. Thank you!
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Old Sep 19, 2018 | 08:41 PM
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Re: 9 Bolt BW brake lines

Originally Posted by scooter
Then I have to break out the drill, tap and die set. Burning the MIG for 2 seconds for each bracket is a lot less work
Whoa! Let's not get carried away here.... You're forgetting the time to open the gas bottle valve, purge the air out of the line, set the ***** and twisties, strap on your personal protective gear, etc...

Cordless drill, drill pilot hole (it might actually already be there), set drill driver torque clutch to "kill", insert square drive adapter, snap on the socket, line up the self tapper with the hole and squeeze the trigger until snug. Wham, Bam, Thank you Black & Decker.
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Old Sep 20, 2018 | 09:21 AM
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From: NJ
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: 9 Bolt BW brake lines

Originally Posted by Drew
Whoa! Let's not get carried away here.... You're forgetting the time to open the gas bottle valve, purge the air out of the line, set the ***** and twisties, strap on your personal protective gear, etc...

Cordless drill, drill pilot hole (it might actually already be there), set drill driver torque clutch to "kill", insert square drive adapter, snap on the socket, line up the self tapper with the hole and squeeze the trigger until snug. Wham, Bam, Thank you Black & Decker.
Purge the lines?!? Strap on gear?!? Please, I am not welding a bridge here, just tacking a bracket to something. Auto darkening face mask and 2nd degree UV burns are what I do when I weld. Plus the MIG is right there accessible all the time, I have no idea where my drill is ATM :P Plus, I've not had good luck with self tapping screws into thicker metal like the bracketry for the rear axle.
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Old Sep 21, 2018 | 07:55 AM
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From: DFW
Car: 90 Formula 350
Engine: 350
Transmission: 700r4
Axle/Gears: Dana 44 3.54
Re: 9 Bolt BW brake lines

A word of warning on the S/S lines the metal is so hard you need to tighten, loosen, tighten tighter, loosen TIGHTEN tighter to "seat" the flare or they will leak! I wont ever buy stainless lines again

I know the steel lines rust but do any of you still drive in the winter? I'd get steel lines and paint them with clear and they will last a good long time just stay out of the salt

Last edited by zman1969; Sep 21, 2018 at 08:00 AM.
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Old Sep 21, 2018 | 08:09 AM
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Car: 92 Firebird
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Axle/Gears: 3.45 9 Bolt
Re: 9 Bolt BW brake lines

Originally Posted by zman1969
A word of warning on the S/S lines the metal is so hard you need to tighten, loosen, tighten tighter, loosen TIGHTEN tighter to "seat" the flare or they will leak! I wont ever buy stainless lines again
You are correct, they need to be seated properly by doing this. I don't know why you would never buy them again though, they are wonderful. I put stainless on all my projects and will continue to do so in the future.
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Old Sep 24, 2018 | 09:46 AM
  #18  
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From: Budd Lake nj
Car: 88 trans am gta
Engine: 305tpi
Transmission: 700r4
Axle/Gears: 9 bolt 3:27
Re: 9 Bolt BW brake lines

Originally Posted by zman1969
A word of warning on the S/S lines the metal is so hard you need to tighten, loosen, tighten tighter, loosen TIGHTEN tighter to "seat" the flare or they will leak! I wont ever buy stainless lines again

I know the steel lines rust but do any of you still drive in the winter? I'd get steel lines and paint them with clear and they will last a good long time just stay out of the salt
I appreciate the heads up. I have used stainless steel lines in the past on other vehicles and I have encountered the same issues to get them to seat properly, but for me the extra work/frustration installing stainless lines was worth it for the end result. The car is never in the rain, but my garage isn't heated,so I'm going with the stainless so I don't need to worry about surface rust on the lines or having clear coat yellow over time.
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Old Sep 24, 2018 | 03:19 PM
  #19  
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Car: '88 Firebird Formula 350
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Transmission: auto 700R4
Axle/Gears: BW 9-bolt L.S.
Re: 9 Bolt BW brake lines

https://www.summitracing.com/int/par...0/applications

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