The emergency brake isn't holding at all in my 53 6400. This is a 4 speed trans that I took out of a 55 model 6400 if that makes a difference. The adjustment nuts are all the way up as far as they will go and it still is not holding at all. The old linkage is loose also. Is there a source for a new brake pad and other parts for this? How do I fix it and where do I find the parts? My 65 C60 may be needing this also soon I will have to look at it. Thanks for any info!!!!