vacuum operated brake booster

blondwookie

I have spent the last few days looking online for any and all information concerning a vacuum operated brake boosters for a 48 to 57 step down Hudson. I have looked online for all previous strings on HET in this issue from maybe 2006 to present. I have been told that it was offered in 1954, as a special option. The vacuum operated assist system had some issues apparently.

When I start to rebuild my 48 Super Six club Coupe, I am using maybe 2 fender mounted vacuum canisters along with a vacuum brake booster with front disc brakes as well as possibly rear brake disc brakes. I know that there are many interchanges with the front spindles to change the drum brakes to disc brakes, with the caliper brackets.

If anyone can help me with the specific years to interchange the front drum brakes to disc brakes, along with the brake booster, and master cylinder would be a lot of help.

Is it possible to mount the vacuum booster to the firewall instead of under the car? I already need to replace all of the brake lines on my car, being that they are rotten on the frame, So if i can also move the location of the master cylinders from under the car to the firewall well with the new master cylinder and vacuum brake booster will help a lot

Thanks Wookie

50C8DAN

Here is my modification on my '54 Hornet.  I had the advantage of starting with one that had Treadle Vac installed.

https://openforum.hetclub.org/discussion/347106/hornet-brake-conversion#latest

50C8DAN

If you want a dual MC and not do the firewall conversion and hanging pedals this modified hydrovac unit is available: https://creative-engineering.com/product/indirect-servo-kit/

I am buying one for my Studebaker Truck.  There are also single MC versions of the hydrovac and some from downunder that work but you will not have the dual MC option with them.

RichardD

Power Brake installation on my '53:

https://goo.gl/photos/QEtE7t64Ebs53teC8

https://goo.gl/photos/ymDDW8qK33uDRCQx8

blondwookie

Dan, what rotors did you use? They almost look like GM rotors. Did you use the Hudson spindles or use a different spindle system all together?

50C8DAN

I used the ABS kit (http://abspowerbrake.com/maincatalog_frameset032.html) and the Hudson spindles.   The kit comes with a small spacer that goes on the spindle, but other than that it is whatever ABS supplies.  It was a quick and easy swap from the drums.