Whether you’re interested in performing your own transmission repair or just want to have an intelligent discussion with your mechanic, knowing the parts that make up this important system is a good bit of knowledge to have. Even if you have little interest in how your car runs, knowing a bit about the subject can go a long way towards protecting you from rip offs at the local car shop. By knowing what goes into the system, you’ll also be able to make a better “off the cuff” diagnosis when you start hearing problems.