AS Motorhome hydro boost brake system

[tuner]

I just realized that my "new" 1994 30' Airstream MH has a hydro boost brake system.

My old Vixen 21TD uses a Power Master hydraulic braking system. I see that these two systems are quite different. Parts for the Power Master system are no longer available. This is forcing Vixen owners to convert to vacuum systems.

What is the reliability history of the Hydro Boost and what is the availability of replacement parts?

[Smartstream]

GM has been using it for years and they are readily available.

[J. Morgan]

Hydro boot is extremely effective and reliable, there are enough of them out there that I doubt parts will ever be an issue.

[summerj]

I build old chevy pick ups too and guys Love putting the HydroBoosts on Their trucks. They are much more precise when braking especially if you have a radical engine/ cam setup.. since the vacuum is not as steady . You will notice that the newer small Chevy Vans use them when space is a factor. You can find everything you need in a late model junk yard to build what you need. Any GM OEM Pump is going to be superior rebuild from China.

Good Luck.