I think all the park brake levers are about the same.

http://chevy.oldcarmanualproject.com/1929_54chevyparts/04/288.HTM

Maybe this link will help.

Mine has a clevis right on the end of the long rod which hooks to the lever assembly. I don't remember seeing a spring like the picture from the manual. I had special cables made with late model brake ends and '37 pull ends so I can use the '37 lever, rod, and pulleys with a '79 Firebird rear axle and brakes. I also use a Lokar floor shifter with the '37 brake lever attached to it.

Joe

1937 Chevrolet Inline-powered Streetrod