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Old 09-20-2023, 06:04 PM   #1
BigTopGT
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No brake fluid to the rear drums. *shakes fist*

I just replaced the MC, but I'm not getting any fluid to the rear brakes.

The shop taking care of it while I'm out of town (or I'd have done it myself) wants to replace he rear brake hoses, so does anyone have a part numbers you can share for the rear hoses to the wheel cylinders, so I don't buy the wrong ones 15 times.? 😁

Mine is a 67 with coils and 8 lugs

I'm wondering if the lines may not be kinking when it's on the ground, but in the mean time, I'd like to get the hoses right and stray ruling things out.


Pic of the truck for attention!

Thanks!
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Old 09-20-2023, 06:09 PM   #2
72c20customcamper
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Re: No brake fluid to the rear drums. *shakes fist*

Quote:
Originally Posted by BigTopGT View Post
I just replaced the MC, but I'm not getting any fluid to the rear brakes.

The shop taking care of it while I'm out of town (or I'd have done it myself) wants to replace he rear brake hoses, so does anyone have a part numbers you can share for the rear hoses to the wheel cylinders, so I don't buy the wrong ones 15 times.? ��

Mine is a 67 with coils and 8 lugs

I'm wondering if the lines may not be kinking when it's on the ground, but in the mean time, I'd like to get the hoses right and stray ruling things out.


Pic of the truck for attention!

Thanks!
There are no hoses to the rear wheel cylinders . The only hose is from the frame to the rear differential from there it’s all hardline . I believe 67-8 use the same hose . Hose I used on my 68 with coil springs the hose for the leaf are different
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Last edited by 72c20customcamper; 09-20-2023 at 06:15 PM.
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Old 09-20-2023, 06:31 PM   #3
BigTopGT
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Re: No brake fluid to the rear drums. *shakes fist*

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Originally Posted by 72c20customcamper View Post
There are no hoses to the rear wheel cylinders . The only hose is from the frame to the rear differential from there it’s all hardline . I believe 67-8 use the same hose . Hose I used on my 68 with coil springs the hose for the leaf are different

It's a center line that feeds a T, isn't it?

Makes sense. (this would be easier if I were under the truck instead of relying on someone else)
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Old 09-20-2023, 07:27 PM   #4
72c20customcamper
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Re: No brake fluid to the rear drums. *shakes fist*

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It's a center line that feeds a T, isn't it?

Makes sense. (this would be easier if I were under the truck instead of relying on someone else)
Yes . On the 67-68 c10s with coil springs the rubber line goes to the passenger side frame rail . I just replaced mine. Not sure about 3/4 ton trucks
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Old 09-20-2023, 11:54 PM   #5
Rust_never_sleeps
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Re: No brake fluid to the rear drums. *shakes fist*

lmc diagrams are really helpful for this kind o' thing:

https://www.lmctruck.com/mechanical/brakes
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Old 09-21-2023, 12:12 AM   #6
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Re: No brake fluid to the rear drums. *shakes fist*

Shop should know this, but there's always a question of whether the differential pressure valve has shifted to the back while bleeding and closed off the back system
.....assuming you have front disks
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Old 09-21-2023, 12:06 PM   #7
BigTopGT
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Re: No brake fluid to the rear drums. *shakes fist*

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Originally Posted by Rust_never_sleeps View Post
Shop should know this, but there's always a question of whether the differential pressure valve has shifted to the back while bleeding and closed off the back system
.....assuming you have front disks
It's 4 wheel drum, but I asked them that same thing.

:/
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Old 09-21-2023, 01:06 PM   #8
Jason Banks
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Re: No brake fluid to the rear drums. *shakes fist*

I've personally had that hose clogged on 2 trucks, you'll also find many threads on here where other have...
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Old 09-21-2023, 02:00 PM   #9
Rust_never_sleeps
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Re: No brake fluid to the rear drums. *shakes fist*

if it's good and old, cracking that rear hose loose without kinking the long line isn't trivial either
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