I would hope that it is just an adjustment problem, but, the length of the bar differs from the 'tight' side to the 'loose' side by about a quarter inch. That should not be,, correct?
Drivers side is 8 1/4 inch,
(the slop was evident in the video, and with the cable completely disconnected it is worse)
Pass side is 8 1/2 inch,
The E-brake "was" bolted to the old transmission, but there is a 700R4 sitting behind a totally reborn inline 292 .030 over. So i have fabricated a mount on the passenger side frame rail. It works well, except for the issues i mentioned.
Here is a link to a video that shows the brake mount and engine/trans, etc Here are some additional pictures of the fire truck project.