My '94, 7.5liter F250 brakes work fine, don't leak, don't pull, etc. But as
I apply the brakes, the peddle will slowly sink to near the floor well after
the brakes lock up.

Is this normal for this brake system?

Pete

I don't think so. Better have them looked at!
Might look at the master cylinder.

Pete Holden wrote:
You change your brake fluid any time in the last ten years?

Brake fluid in my '99 looked just like coffee when I changed
it last year. First thing to look at, and cheaper than a master
cylinder, although from your symptoms, you may need one.

--
frosty