1972 Mark IV brake booster alternative?

[DouglasMenke]

Anyone have any idea of an alternate brake booster for a Mark IV? They cannot be had new, and I have a car show coming up in a few weeks, so no time to have it rebuilt. There are many aftermarket options, including electric boosters that only need 12v to function, but I rather hear from all of you if there is a unit that will drop in place.

Thanks!

 

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Is that a vacuum booster or a hydro-boost unit?

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I believe it is a vacuum booster.
The Cardone # is 54-73005
Not finding it anywhere either

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[DouglasMenke]

I believe it is a vacuum booster.
The Cardone # is 54-73005
Not finding it anywhere either

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It's a vacuum, but I am finding there are hydro-boost units available, and may be a cheaper alternative to electric.

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[Action]

Changing is always more expensive!
In the case of the brakes, a hydro-boost would require at least a different power steering pump, custom hoses & fittings and drive belt. Likely more items as well.

An electric powered vacuum operated brake booster would be using a universal vacuum brake booster with an electric vacuum pump. You already have a vacuum source which is the engine. The issue will be the space available between the master cylinder and cowl for a booster. The stock one is not deep and is very wide. Universal boosters do not usually come that way. And a universal booster of any source may not fit.

Doing research, the Mark series did not get hydro-boost until later years. I believe the first model year was 1975.

If your Mark is going to be in the show, modifying the brake system will be a down grade.

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[DouglasMenke]

Changing is always more expensive!

Amen to that

If your Mark is going to be in the show, modifying the brake system will be a down grade.

It's not being entered as a concourse... The goal for this car is a drag and drive car for events like Hot Rod Drag Week. I do appreciate your feedback! Any help is appreciated!

 

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Good luck.

If it were me, I woudl send out to have it rebuilt.

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[weaverjt65]

Anyone have any idea of an alternate brake booster for a Mark IV? They cannot be had new, and I have a car show coming up in a few weeks, so no time to have it rebuilt. There are many aftermarket options, including electric boosters that only need 12v to function, but I rather hear from all of you if there is a unit that will drop in place.

Thanks!

Did you ever find an alternative brake booster or a suitable replacement? Just curious what you were able to do. I'm also in need of the same brake booster and haven't found one yet. Thanks!

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Parting out a 1972 Mark IV

I am parting out an entire 1972 Mark IV starting the last week in October 2023. The entire vehicle should be disassembled by the end of the year. If you have any interest message me. The location is Phoenix AZ near the airport. Action

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