I really appreciate the responses. I do have the plug in that small hole, so i will pull it and reach in there with a small screw driver, and back off the adjuster. My main reason for getting in there is the rear brake cylinder is leaking, so i was just going to change both sides while I am at it. Any tricks to help me make this an easier job when replacing them? I've done them on many cars, but never on a Datsun Z car. I am sure once I've done it, it won't be that bad. Thanks again, Everyone.