My 76 has the same issue with the parking brake cable as yours does. I'm no expert but I can tell you that many of our Spiders have the exact same issue. The main advice I have now is don't worry too much about this, it is not that big a deal. The emergency brake will work and as someone posted earlier, it’s been this way for years. Right now you have higher priorities.
When I first got my Spider the exhaust vibrated and rattled against the parking brake cable a lot and it drove me crazy. Replacing the two rubber hangers back by the muffler helped. Then I started thinking how I could get the brake cable lower as it was tight against the muffler. So I got two “coupling” nuts and used them to drop the parking brake cable bracket down from the body about an inch and a half. The cable still touched a little but no more noise so I was pretty pleased with myself. Here’s what the coupling nuts look like.
![Image](http://farm8.staticflickr.com/7254/7823257768_3e38cbcca3_s.jpg)
The parking brake worked fine but it wasn’t as smooth with this arrangement.
But then I got a 4-2-1 exhaust header and downpipe and the installation resulted in my exhaust dropping down about an inch, so I was back where I started. The brake was harder to apply and it was banging around down there again.
After looking things over I decided to reroute the brake cable above the exhaust and through its bracket differently as you can see in this picture. The coupling nuts are still there but they are no longer doing anything. Not elegant but it works.
![Image](http://farm8.staticflickr.com/7246/7831005608_c042ed473a_z.jpg)