Power brake booster upgrade

Modified FSJ Tech Area

MGoins
Posts: 33
Joined: Sun Jan 03, 2016 7:15 pm

Re: Power brake booster upgrade

Post by MGoins »

Hey Yellar I've got an 07 and appears that I need about 2.5" adapter did you make one or purchase one?

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Yeller
Posts: 1521
Joined: Thu Apr 01, 2021 7:54 am
Location: Rogers County Oklahoma

Re: Power brake booster upgrade

Post by Yeller »

I used the factory booster bracket as a spacer and lengthened the push rod 5/8”. Here’s a better pic. I considered pulling that and making a spacer the correct length but took the easy route. I did have to drill 2 holes in the plate on the booster and 2 more in the original booster bracket to bolt everything up. Used an extra shock boot to seal up the hole in the firewall.
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The bus I ride is so short it is a yellow Smart Car full of squirrels, monkeys and clowns.

1970 J2500 Resto Mod
https://www.fsjnetwork.com/forum/viewt ... 12&t=21395

1974 Bronco “Broncno”
https://classicbroncos.com/forums/threa ... st-3411909

MGoins
Posts: 33
Joined: Sun Jan 03, 2016 7:15 pm

Re: Power brake booster upgrade

Post by MGoins »

How did you extend? Cut it off and add smaller heim?

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Yeller
Posts: 1521
Joined: Thu Apr 01, 2021 7:54 am
Location: Rogers County Oklahoma

Re: Power brake booster upgrade

Post by Yeller »

Cut it off and welded in a spacer. The hole was the same size as the rod on the pedal.

I really don’t see why it couldn’t be shortened other than it is difficult to verify the arc that the pedal moves in is within the motion allowed by the rod pivot. I know mine barely moves enough to get the rod connected to the pedal
The bus I ride is so short it is a yellow Smart Car full of squirrels, monkeys and clowns.

1970 J2500 Resto Mod
https://www.fsjnetwork.com/forum/viewt ... 12&t=21395

1974 Bronco “Broncno”
https://classicbroncos.com/forums/threa ... st-3411909

MGoins
Posts: 33
Joined: Sun Jan 03, 2016 7:15 pm

Re: Power brake booster upgrade

Post by MGoins »

Thanks for the input my hydro has 5/8 hole and break arm has 1/2" nub that is why I asked probably going to cut it thread it and add smaller heim to extend it and get it tighter on the brake pedal

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