Driveline Basics

Ever wondered what all the talk about driveshaft angle is really about? Check out this article.

It explains that a u-joint at an angle travels in an ellipse, not a perfect circle, and that can cause vibrations. To avoid this, double cardon shafts have 2 universal joints rotated to each other so that the elliptical paths cancel each other out.

This article also explains what the optimum driveshaft to pinion angles are... with pictures!

http://www.4x4wire.com/toyota/tech/driveline/