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1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

Power booster and master

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Old Jun 1, 2024 | 02:54 PM
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Power booster and master

Ok I finally was able to get under the truck, well it’s pouring here and I was only able to stick my phone under it while recording and verify the truck still has the non power orig master, unless anyone’s keen eye spots something that I don’t lol.

The truck does have disk brakes on all 4 corners, and since this a whole new world to me, is there anything specific I need to order, or if anyone can post a link to the exact power booster I need to order, because I’m seeing 1” or 1 1/8” bore and I have no idea what will work best or I would need. We have a cruise and car show in the end of June we want to get the truck in so I don’t want to mess with returning anything at this point.

Thanks in advance



 

Last edited by MissingStang; Jun 1, 2024 at 03:40 PM. Reason: Added more info.
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Old Jun 1, 2024 | 05:49 PM
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As asked before, which disc kit was installed? Your master/booster needs to be matched to the calipers specifications and the front/back circuits need to be proportioned correctly. What you show is a stock single circuit master cylinder which is completely inappropriate for quad discs.
 
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Old Jun 1, 2024 | 05:53 PM
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Originally Posted by bmoran4
As asked before, which disc kit was installed? Your master/booster needs to be matched to the calipers specifications and the front/back circuits need to be proportioned correctly. What you show is a stock single circuit master cylinder which is completely inappropriate for quad discs.
I’ll go get pics of them but who knows when he did them or what they came off from.
 
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Old Jun 1, 2024 | 06:34 PM
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Originally Posted by bmoran4
As asked before, which disc kit was installed? Your master/booster needs to be matched to the calipers specifications and the front/back circuits need to be proportioned correctly. What you show is a stock single circuit master cylinder which is completely inappropriate for quad discs.





here’s what I’m looking at. I’ve never seen brake calipers like this.
 
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Old Jun 2, 2024 | 04:20 AM
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Your brakes looks like old 70's Ford stuff. Perhaps Granada front, not sure on the rear. Been awhile since I've messed with that stuff.

After our pervious conversation I went looking through the CPP website and found this kit that looked promising to me. I like that it's set up for 4 wheel discs and uses the stock pedal, bolts to the original mounting point. It also appears they worked out some geometry for the pedal stroke that would be favorable for the power booster. If it were me, I'd give this a try. https://www.classicperform.com/Store...ck/4852BBD.htm https://www.classicperform.com/Cshop/cart.html The only other thing I might consider is a remote fill option, because laying on your back trying to fill and service the master cylinder, crawling up and down/in and out from under the truck two dozen times is a royal pain. It will end up under the seat area after it's installed and not be serviceable from the topside.

 
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Old Jun 2, 2024 | 07:23 AM
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Originally Posted by 52 Merc
Your brakes looks like old 70's Ford stuff. Perhaps Granada front, not sure on the rear. Been awhile since I've messed with that stuff.

After our pervious conversation I went looking through the CPP website and found this kit that looked promising to me. I like that it's set up for 4 wheel discs and uses the stock pedal, bolts to the original mounting point. It also appears they worked out some geometry for the pedal stroke that would be favorable for the power booster. If it were me, I'd give this a try. https://www.classicperform.com/Store...ck/4852BBD.htm https://www.classicperform.com/Cshop/cart.html The only other thing I might consider is a remote fill option, because laying on your back trying to fill and service the master cylinder, crawling up and down/in and out from under the truck two dozen times is a royal pain. It will end up under the seat area after it's installed and not be serviceable from the topside.

Thank you for the response. Is there a kit or would I just modify this one to move the resivoir to a better location? That was another question I had, because the hole in the floor would not line up and I didn’t want to cut a larger one in the floor.
 
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Old Jun 2, 2024 | 08:29 AM
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That welded on rear bracket looks a little scetchy .
 
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Old Jun 2, 2024 | 10:05 AM
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Originally Posted by MissingStang
Thank you for the response. Is there a kit or would I just modify this one to move the resivoir to a better location? That was another question I had, because the hole in the floor would not line up and I didn’t want to cut a larger one in the floor.
Here's the CPP kit to go with their master. It has a special cap that replaces the original one on the master cylinder and adds a remote reservoir to the firewall or any other handy place you can put it for ease of service. https://www.classicperform.com/Store...rucks/BRCK.htm
 
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Old Jun 2, 2024 | 10:10 AM
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Originally Posted by EBEAR
That welded on rear bracket looks a little scetchy .
that’s what I said too lol. A full system is in the future that’s for sure.
 
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Old Jun 2, 2024 | 01:56 PM
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Originally Posted by EBEAR
That welded on rear bracket looks a little scetchy .
Originally Posted by MissingStang
that’s what I said too lol. A full system is in the future that’s for sure.
If you mean the weld at "A", it looks like that bracket is also angled and through-bolted at "B".

 
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Old Jun 2, 2024 | 02:25 PM
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Originally Posted by EffieTrucker
If you mean the weld at "A", it looks like that bracket is also angled and through-bolted at "B".
I meant the weld they used on the brake caliper bracket in my earlier photo. Idk when it was done and why they didn’t get a ford 9” bracket. But again he built this truck in thr 90’s so idk if there was even brackets.
 
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Old Jun 2, 2024 | 03:31 PM
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Originally Posted by MissingStang
I meant the weld they used on the brake caliper bracket in my earlier photo. Idk when it was done and why they didn’t get a ford 9” bracket. But again he built this truck in thr 90’s so idk if there was even brackets.
Ah! Gotcha.
 
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