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Old 01-02-2009, 11:23 PM   #1
ericpost
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Customize my brake lines...

This is my REAR brake lines which start at the rear of the truck near the gas tank.

Currently my hard brake lines run in there stock location down the frame rail to a bracket. The bracket is close to the exhaust and the flexible line runs from the bracket to the center of the diff. Once at the diff there is a block which splits the fluid to each calipers. The 14bff has an off center diff which is a change from my 14bsf.
Oh and I just lifted the rear 6"....

Long story shoirt I plan to re-work the rear brake lines.

After looking at it for a bit I decided to run my hardline from the frame to approx the center of the truck. I'll tack a bracket up there which I'll use to go from a hard line to a flex line. I plan to run a 24" flex line from the bracket to the block at the diff. The 24" flex line length will allow for the additional 6" of lift and also allow an additional 7-8" of flex. This will allow the line to go straight down to the diff and be no where near the exhaust. I then plan to run hard line, one 12" and one 18" due to the diff stagger, from the block to brackets which I'll tack to the the axle housing. These brakets will be where I transition from hard line to flex line. From there I'll finish the job with 18" of flex line to the calipers.

Anyone got some alternative suggestions or concerns?

Is allowing for 7-8" of flex in the flex line enough?

Can I run flex line from the block at the diff all the way to the calipers?

Any other ideas?

FYI:
I'm planning on using braided SS flex line.
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72 GMC Jimmy, 350, sm465 np205 (getting a face lift)
64 Nova SS, 327 SC & gassed, TH350. (blowed it up)
84 HD FX frame,80 FL tins, evo with 85hp/90tq (wifes bike)
96 HD FatBoy evo with 102hp/100tq (mine!)
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Old 01-03-2009, 10:23 AM   #2
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Re: Customize my brake lines...

You mean run brake hose all the way out, like this?



Sounds like you have a solid plan.
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Old 01-03-2009, 10:54 AM   #3
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Re: Customize my brake lines...

Looks like you have an axle truss and an anti-wrap system. This gave you some additional locations to mount your fluid splitter which is high and in line with the mount point near the frame rail.

Since I don't have that I was thinking of mounting the spliter at the top of the diff. This keeps it up high which keeps the slack out of the way of being caught up on stuff. To do this I'm going tack a bracket to the bottom of the bed in line with the diff. I'll then route the hard line from the frame to the new bracket and transition to the flex line from there to the diff.

Looks like you have flex line running from the splitter to the calipers. Looks alot cleaner and easier, I wasn't sure if this was doable or not but if it is I'll go that route as well.
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72 GMC Jimmy, 350, sm465 np205 (getting a face lift)
64 Nova SS, 327 SC & gassed, TH350. (blowed it up)
84 HD FX frame,80 FL tins, evo with 85hp/90tq (wifes bike)
96 HD FatBoy evo with 102hp/100tq (mine!)
KEEP NOTHING STOCK!
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Old 01-03-2009, 11:11 AM   #4
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Re: Customize my brake lines...

Quote:
Originally Posted by ericpost View Post
Looks like you have an axle truss and an anti-wrap system. This gave you some additional locations to mount your fluid splitter which is high and in line with the mount point near the frame rail.

Since I don't have that I was thinking of mounting the spliter at the top of the diff. This keeps it up high which keeps the slack out of the way of being caught up on stuff. To do this I'm going tack a bracket to the bottom of the bed in line with the diff. I'll then route the hard line from the frame to the new bracket and transition to the flex line from there to the diff.

Looks like you have flex line running from the splitter to the calipers. Looks alot cleaner and easier, I wasn't sure if this was doable or not but if it is I'll go that route as well.

Actually, my junction is on the left side of the axle... basically, you can mount them anywhere that delivers fluid to the brakes
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Old 01-03-2009, 11:16 AM   #5
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Re: Customize my brake lines...

Quote:
Originally Posted by grendel View Post
Actually, my junction is on the left side of the axle... basically, you can mount them anywhere that delivers fluid to the brakes

I missed that!

Where did you source your lines? I'm heading out in a few (with the old stuff in hand) to see who has what I need.
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72 GMC Jimmy, 350, sm465 np205 (getting a face lift)
64 Nova SS, 327 SC & gassed, TH350. (blowed it up)
84 HD FX frame,80 FL tins, evo with 85hp/90tq (wifes bike)
96 HD FatBoy evo with 102hp/100tq (mine!)
KEEP NOTHING STOCK!
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Old 01-03-2009, 11:29 AM   #6
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Re: Customize my brake lines...

I bought mine from speedway (it's all AN stuff, with the correct adapters). None of the local places had what I was looking for.
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Old 01-03-2009, 11:57 AM   #7
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Re: Customize my brake lines...

I was afraid of that.... called Robbins and NAPA, they have a selection I can rumage thru, I'm not hopeful but I think I'll head out anyway.
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72 GMC Jimmy, 350, sm465 np205 (getting a face lift)
64 Nova SS, 327 SC & gassed, TH350. (blowed it up)
84 HD FX frame,80 FL tins, evo with 85hp/90tq (wifes bike)
96 HD FatBoy evo with 102hp/100tq (mine!)
KEEP NOTHING STOCK!
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Old 01-03-2009, 09:42 PM   #8
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Re: Customize my brake lines...

what is that bar or linkage attached to that axle in the pis above?
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Old 01-03-2009, 10:46 PM   #9
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Re: Customize my brake lines...

Quote:
Originally Posted by EVL GMC View Post
what is that bar or linkage attached to that axle in the pis above?
Anti wrap bar. Prevents the springs from wrapping up under engine torque. Also includes a truss, to prevent the 14B from spinning it's tubes breaking the rosettes and destroying the housing.
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Old 01-03-2009, 10:52 PM   #10
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Re: Customize my brake lines...

thats cool do they make something like that for my truck?i have a 69 gmc 3/4 ton with dana60.
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Old 01-03-2009, 11:55 PM   #11
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Re: Customize my brake lines...

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Originally Posted by EVL GMC View Post
thats cool do they make something like that for my truck?i have a 69 gmc 3/4 ton with dana60.
Probably. Kert at Diy4x.com can probably sort you out.
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Old 01-10-2009, 08:37 PM   #12
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Re: Customize my brake lines...

inlinetube had one for me.
I have the exact set-up you are going for. just give them a measurement, and tell them if you need a lot, or a little length for articulation.

mmmm stainless
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