Single or double diaphragm brake booster

50C8DAN

I am finally getting to the point of putting the disk brakes on my '54 and also updating the power brake unit.  I have never liked the Tredlevac unit and it needs to be either rebuilt or replaced.  I am planning to go with a modern power booster (I had said this a couple of years ago but did not get to it.  Now I have PLENTY of time!) I am looking at either a 7 in. single or double diaphragm unit.  It will be a tight fit widthwise regardless.  Has anyone else had experience with double vs. single? from what I have read, double is more efficient, but single is OK with disk/drums

RichardD

Here is info on Power Brakes I installed on my '53. Don't know if it is applicable to '54.
BUT recommend seat belts ( including shoulder) if you install.
https://goo.gl/photos/QEtE7t64Ebs53teC8  

50C8DAN

Thanks, Richard but my '54 came with power brakes and your unit is like a hydrovac using a remote booster.  The '54 Tredlevac was similar to the modern setups with the booster on the firewall.

Ol racer

Ive installed GM Power Booster on my Hudson's. The latest one was a 2004 Chevy Cavalier or Malibu with swing pedal.  I agree you need Seat & Shoulder Belts afterward...