The Stovebolt Site Forums The Shop Area Engine Shop two piece driveline alignment Q

The rear end and the engine/transmission will be on the same plane, lets say 3 degrees for arguments sake. It is importand that the front shaft joints have enough angle to work, i.e, for the rollers to rotate in the cups. So you do not want that shaft at the same plane as the tranny. If you place it at 1.5 degrees upward then the rear shaft would then be 1.5 degrees downward and these angle would cancel each other. If the yokes are all properly aligned then it would work fine. Three and four piece drivelines are subject to similar conditions. It is important that the joints do not exceed the maximum working angle but this is seldom the case except in extreme off-road setups, etc. If you have any angle on the front shaft on your truck I doubt you have any concerns.