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Re: Drive Line Placement
you can use a plumb bob and mark the floor under the center of your crank pulley, trans output, pinion input and each axle. then connect the dots and use a protractor on the lines to get the angles for the top view. an angle finder on the trans output and pinion will give you the angles from the side view.
equal but opposite angles are what you want. eg 3 deg down on engine and 3 deg up on pinion will cancel and be vibration free (not factoring in spring flex under load changing the pinion angle with leaf spring suspension or having a recommended 1 deg variation in angles to counteract brinelling of the needle bearings on the joint's cross trunions etc).
Brinelling is when needle marks appear on the surface of the U-joint cross trunion
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