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Old 11-01-2021, 06:56 AM   #1
Shampipple
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Default Master Cylinder bracket- 39 Pickup

I tore my truck down to the frame last night. The Master Cylinder bracket is busted off.

Does anyone know of a source for a replacement? Someone with a junk frame, or upgraded brakes? I know I can fab one, but would rather just find a replacement.


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Old 11-01-2021, 08:07 AM   #2
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Default Re: Master Cylinder bracket- 39 Pickup

The master cylinder bracket is part of the brake and clutch. Those are not that hard to find. Should be some in the swap section or ebay.
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Old 11-01-2021, 08:39 AM   #3
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Default Re: Master Cylinder bracket- 39 Pickup

Not on my truck. It is riveted to the frame.


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Old 11-01-2021, 09:09 AM   #4
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Default Re: Master Cylinder bracket- 39 Pickup

Quote:
Originally Posted by Shampipple View Post
Not on my truck. It is riveted to the frame.


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Maybe post some pictures to see what you have going on; because riveted on is not at all normal for Ford.
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Old 11-01-2021, 09:37 AM   #5
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Default Re: Master Cylinder bracket- 39 Pickup


Brake and clutch pivot


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Old 11-01-2021, 09:38 AM   #6
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Default Re: Master Cylinder bracket- 39 Pickup

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What’s left of the bracket. You can see the Clevis for the plunger rod.


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Old 11-01-2021, 09:42 AM   #7
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Default Re: Master Cylinder bracket- 39 Pickup


Better pic of lever and bracket remnants.


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Old 11-01-2021, 09:44 AM   #8
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Default Re: Master Cylinder bracket- 39 Pickup

I may have just answered my own question. I see that support has two holes in it. I’m guessing someone used that for the master?


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Old 11-01-2021, 09:48 AM   #9
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Default Re: Master Cylinder bracket- 39 Pickup

I am wondering if this is a 38 frame with a home brewed hydraulic setup.


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Old 11-01-2021, 11:51 AM   #10
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Default Re: Master Cylinder bracket- 39 Pickup

^^ Yes, it looks like that is the case. The frame and pedals are pre-hydraulic. It might be easier to find a 39 pedal assembly. If you can't find an original one they are available new repro.
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Old 11-01-2021, 12:02 PM   #11
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Default Re: Master Cylinder bracket- 39 Pickup

I just purchased what I hope is an original.


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Old 11-01-2021, 12:57 PM   #12
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Default Re: Master Cylinder bracket- 39 Pickup

If you have a '39 commercial car frame (1/2T) the '39 pedal assembly should fit right in. If its a '38 frame there are modifications that need to be done. Look for the vin number on the top of the frame, drivers side, about 12" forward of the firewall and that will tell you what you have.
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Old 11-01-2021, 01:25 PM   #13
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Default Re: Master Cylinder bracket- 39 Pickup

Thanks Bill


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Old 11-01-2021, 01:44 PM   #14
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Default Re: Master Cylinder bracket- 39 Pickup

Quote:
Originally Posted by Shampipple View Post
I just purchased what I hope is an original.


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This is an original '39 set of pedals. The bracket AND EACH pedal will have a "91A-" prefix in the number on each piece of '39 pedals. DD




Disassembled


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Old 11-01-2021, 02:08 PM   #15
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Default Re: Master Cylinder bracket- 39 Pickup

It’s a 38 frame. 39 body. 39 juice brakes on the axles.

What will I need to modify to adapt to 39 pedals? Cut the frame?


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Old 11-01-2021, 03:06 PM   #16
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Default Re: Master Cylinder bracket- 39 Pickup

Don't know if these will help or not but here they are just in case...
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File Type: jpeg PA100012.jpeg (73.7 KB, 33 views)
File Type: jpeg PA100016.jpeg (68.0 KB, 75 views)
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Old 11-01-2021, 03:09 PM   #17
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Default Re: Master Cylinder bracket- 39 Pickup

You will need to enlarge the hole that the clutch/brake shaft goes through now. Below is a template that should help. You will find that the '39 clutch pedal will hit the '38 frame when fully depressed. The '39 frame has a dimple where the clutch arm contacts the frame. You should heat and form one similar so the clutch pedal has full travel. The clutch arm on the transmission will need to be able to reach the pedal linkage that is now farther to the left. There are some offset arms available but I just made up a new longer shaft and used the stock arm. Of course you will need to install a hydraulic brake light switch.

My '39 pedals lined up perfectly with the metal floorboard.
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File Type: pdf 39 pedal template.pdf (327.9 KB, 10 views)

Last edited by 38bill; 11-01-2021 at 10:58 PM.
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Old 11-01-2021, 03:13 PM   #18
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Default Re: Master Cylinder bracket- 39 Pickup

Here is what mine look like installed.

'38 frame/ '39 pedals
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File Type: jpg 39 pedals in a 38 frame.jpg (75.8 KB, 42 views)
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Old 11-01-2021, 03:57 PM   #19
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Default Re: Master Cylinder bracket- 39 Pickup

You guys are the best! I really appreciate it.

I’m not new to building cars/machines/tractors etc. Just new to flatheads- I wound up with the 39 pickup, a 50 shoebox, and a 49 parts car within the last year.


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Old 11-01-2021, 05:15 PM   #20
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Default Re: Master Cylinder bracket- 39 Pickup

.

It sort of looks like you have a pedal assembly already installed, WITH a master cylinder MOUNTED. A '39 assembly would almost surely bolt-in once you remove what is there. Clutch linkage looks just like '39. I see what looks like a '38 "CABLE BRAKE" sheath indicating that truck likely is a '38, and NOT '39.

Is the serial number stamped on the frame rail LOWER than 18-4,661,001?

DD

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