sorry this is turning in to a tech thread...

I did the full bleeding procedure and now I get a good pedal feel after 4 pumps or so.
Then, after waiting a little.. like 30 seconds or more, the pedal will go back to the floor and firm up after a few pumps again.
I replace all the rear wheel cylinders and the rear brakes work well when the pedal firms up. However, I have no front brakes at all even though they bled fine. Probably bad wheel cylinders up front?

The thing that puzzles me the most is the loss of pressure after such a short ammount of time.


1954 GMC 350-27