Why do we have to think about these angles at all? We wouldn't if the engine, transmission, driveshaft, and pinion all shared the same centerline. As it is, these components are never on the same ...

Joining the end of one piece of tubing to another is known as notching or coping (pronounced like "hope" with a c instead of an h) the tube. It's all based on angles that are determined by where you ...