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Old 01-01-2024, 03:53 PM   #1
XPFalcon1966
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Smile Early falcon drum brake booster.

Hi
I am new to this forum.
Does anybody know how early falcon vh44 brakes boosters work?
Are they any good?
Any information would be very much appreciated.
No falcon worries
Darryl
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Old 01-01-2024, 04:06 PM   #2
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Default Re: Early falcon drum brake booster.

Hi. With drums all round the line from the master cyl went to the booster and then to the multi way fitting to all the wheel cyls. If it had disc brakes the brake lines split at the master cyl with one line going to the rear brakes and the other going to the booster and then from the booster to the front brakes. By todays standards it is nothing special but in its day it was quite good. Cheers MD
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Old 01-01-2024, 04:23 PM   #3
XPFalcon1966
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Default Re: Early falcon drum brake booster.

Thanks heaps Michael.
I have 14 inch rims that suit drums only so I don’t want to go discs.
The brakes aren’t fabulous and hoping to improve them a bit.
You need to be Arnold Swartzenger to jump on the brakes to pull it up.
Is it complex to add a booster?
Cheers Darryl
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Old 01-01-2024, 05:02 PM   #4
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Default Re: Early falcon drum brake booster.

I’d suggest a few things, they aren’t original but are reversible and aid safety.

First consideration should be a split circuit master cylinder. That will near eliminate the risk of complete brake failure.

From there, consider some aftermarket steel rims in 15” size. You’ll have to likely improvise fitting of the original type hubcaps but in return get a good choice of more modern tyres at fair prices.

The final change would be a disc brake and booster conversion, whether by adaptation or sourcing original parts. Sorting wheels as described above, will allow this without physical interference between brake/rim. People who haven’t experienced drum brake fade (with heat) may not be prepared for it when problems arise - hence the idea of fitting discs.
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Old 01-01-2024, 10:23 PM   #5
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Default Re: Early falcon drum brake booster.

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Originally Posted by XPFalcon1966 View Post
Thanks heaps Michael.
I have 14 inch rims that suit drums only so I don’t want to go discs.
The brakes aren’t fabulous and hoping to improve them a bit.
You need to be Arnold Swartzenger to jump on the brakes to pull it up.
Is it complex to add a booster?
Cheers Darryl
Hi. Are they a 4 stud or 5 stud wheel? Its been a long time since I did any thing on a pre 65 falcon but I thought that 14 inch wheels were 5 stud which means XA to XF discs will fit. If they are 4 stud then talk to hoppers stoppers, I think they do a kit that will fit. Its then just a case of adapting a tandem master cyl and just boost the front brakes. Cheers MD
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Old 01-01-2024, 11:59 PM   #6
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Default Re: Early falcon drum brake booster.

The easiest and less invasive option is to fit either a 1966 Drum/Drum power booster to the firewall. There may be mounting grommets in place. The 66 USA falcon had the power brake option.
The other option is to visit a brake part seller - in WA it wood be Perth Brake Parts, who will match a brake booster and proportioning valve to suit.


Power assisted Drum Brakes can be awesome if set up correctly.


You may be able to use the brake booster from a 1971 - 1974 Holden HQ which were fitted fitted with a power assisted 4 wheel drum brakes.


Front Disc can be fitted in a 14 inch rim. The Holden Torana was fitted with disc/disc or disc/drum.
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Old 02-01-2024, 10:11 AM   #7
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Default Re: Early falcon drum brake booster.

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Originally Posted by oldgringo View Post
The easiest and less invasive option is to fit either a 1966 Drum/Drum power booster to the firewall. There may be mounting grommets in place. The 66 USA falcon had the power brake option.
The other option is to visit a brake part seller - in WA it wood be Perth Brake Parts, who will match a brake booster and proportioning valve to suit.


Power assisted Drum Brakes can be awesome if set up correctly.


You may be able to use the brake booster from a 1971 - 1974 Holden HQ which were fitted fitted with a power assisted 4 wheel drum brakes.


Front Disc can be fitted in a 14 inch rim. The Holden Torana was fitted with disc/disc or disc/drum.
Hi. Power assisted drum brakes will still fade after a few hard stops. Not enough room on the firewall for a large diameter mastervac setup and not enough clearance to the shock tower for a small diameter but long mastervac on any of the early birds until the XY/XW falcons. The 14 inch wheel size isn't the problem but matching the stud pattern with the rear axle can be, XA to XF front brakes will fit and match the rear axle if it is 5 stud and fit under 14 inch wheels but it all needs to be custom made to have a 4 stud setup or to fit under 13 inch wheels like most early birds had. Cheers MD
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Old 02-01-2024, 05:06 PM   #8
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Default Re: Early falcon drum brake booster.

My first car was an XP wagon with 4 wheel drum brakes.
Hit the brakes hard at 70mph and they were cooked by 40mph....frightening...
A booster will only mask, not fix, their inadequacies.
I'd be seriously looking at a disc conversion, as suggested.
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Old 02-01-2024, 05:12 PM   #9
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Default Re: Early falcon drum brake booster.

This thread made me realise I’ve got everything for an XP four stud disc conversion with factory disc spindles. Can’t see myself using it on a B-series!
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Old 07-01-2024, 11:15 AM   #10
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Smile Re: Early falcon drum brake booster.

Hi
That sounds awesome!
I just need to check that my rims will clear the discs. Can you tell by a photo?
I’m in Melbourne but I have a friend that could pick them up in Sydney.
What exactly would I need and would you be prepared to sell them?
Cheers Darryl
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Old 07-01-2024, 11:24 AM   #11
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Default Re: Early falcon drum brake booster.

They won’t be cheap, I will forewarn you. Haven’t seen another set for sale in ages, so it’s hard to cite a price right now. The principal benefit is ease of fitting and no need for certified (engineered) chassis components.

As to clearance I’ll have to put a caliper on the spindle and measure the radial distance. Can do that later - at the present my yard is full of angry bees and they need a few hours to calm down before I go to the garage.
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