Brake Troubleshooting

[Jl elevatorman]

Stupid fat fingers: I run heavy and to get my truck to stop I had to, 1- got a master cylinder from a mid 70's Ford truck ( same casting number so all the same line sizes but with a SMALLER bore.) This increases the line pressure, the only trade off is a little more pedal travel. 2- put a larger bore rear wheel cylinder to increase push on shoes. 3- Put F350 rear shoes on, wider but fit the drum. Now its not scary.

 

[cbmech]

One thing to remember on old drum brakes, the adjustors only work if you are going fast enough in reverse and make a solid application. They are activated by rear (main) shoe moving. Going forward there is not enough movement.