Here's a picture of a PB pedal and a non-PB pedal. These are the same from 55-57.

The pedal on the left is the PB pedal, does yours look exactly like this? Note that the hole for the linkage is a little lower than on the manual brake pedal. The pad is welded on a little off center to the left, and there's a small bracket spot welded near the top for the brake light switch. When installed, the pedal is much closer to the floor than the manual brake pedal.

Make sure you have the correct lever assembly too. The 55-56 lever is different from the 57 version. The long arm on the 55-56 lever has a bend in it, if it's straight then it's a 57 lever.

You have an automatic transmission, right?

 

Thanks a million! The pedal on the left is the one we just painted and getting ready to install in about 30 minutes-the one on the right is the one we're taking out. We have a powerglide in it right now hooked to a 265, and our lever assembly does have a bend in it, so I'm hoping it should go together a little smoother than the first go 'round.
Thanks again!

 

Oh yeah, one more question- is there any difference in assembly between the pb and non-pb assembly?

 

Be sure and replace the nylon bushing during the changeover.
Terry

 

Turbobucket - I did the exact same thing & it worked great. I did add a pedel stop as the pedel came up off the floor to far.
Doug

 

Thanks man, I just installed the assembly and it went together flawlessly. I guess I just had to do a little mixin' and matchin', but I ended up finding the correct combo.:happy0013:

 

It's also a good idea to bench bleed the Treadle-Vac master cylinder, so you can tilt the front of the MC down so as not to trap air. This can be done on the car if you've already installed it, just lift the rear up a little.