When I bought my car I found the parking brake wasen't working. When I had new tires put on i looked underneath the car while it was up on the lift and found it was disconnected on each side at the rear calipers. There is like a litte spring thing with a cord inside. The cord needs to be pulled and hooked up. Is this difficult to do? Are there any tricks or things I can do to make it easier if it is a b!tch? THanks