Treadle Vac Conversion

Posted by Andrew M On 2022/1/30 17:31:24

I have been researching on different options besides using the factory Treadle-Vac system on my 56 400. The main problem with converting to a modern type master/booster is the 1:1 pedal ratio. I do not want a master/booster on the firewall due to it not looking original. I want to keep it in the toe board area where it is from the factory. Last night while researching, I came across a product by the ABS Power Brake company in California. It mounts in the same holes as the factory Treadle-Vac and has an additional linkage to compensate for the 1:1 factory ratio to increase the ratio to a more modern 4:1 or so. The kit in the link below is installed on an Oldsmobile or Pontiac I think, however it is the same concept as the Packard. The kit they are using uses an electric booster, but if I have to use a remote booster, I would prefer a vacuum type. In the article they also convert to disc brakes, which I don't know if I will do or not, however the company offers a disc brake kit for the 56 Packard. Has anyone ever used this type setup, and would it work on my 56 400?

Here is the link to the article with the Treadle-Vac conversion.

Brake System Upgrade from Treadle Vac with ABS Power Brake Inc.