I agree with Marlene....If you read through alot of Mels answers you will find many of his answers and replies are very unproductive and are not even solutions. Many of the things Kevin talks about, Mel tries to contradict and has opposing views on. I just won't listen to him anymore, so don't let his reply bother you. I use brake safe and I love this product. With just a simple walk around inspection you can visually see if you have any breaks out of adjustment. The install is pretty simple and straight forward. If your not comfortable doing it your self then any decent truck shop should be able to do the install for you. When you order brake safe, it comes with instructions on the installation. You could find a local shop first, and talk to them about what you want to do and just set it up with them. I recommend this product and think you will like it. Hope this helps you.