Quote:
Originally Posted by ThoR294
so eff my trans angle and just measure at the rear?
Im messing with everything because I can't kill this vibration no matter what I set my rear at
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There's conflicting info on the "best way" to do it.
Mike @ Chris Alston's told me something like this:
Quote:
any engineering principle or drive line theory or power transmission theorist will tell you 2 u-joints must be in phase for minimal loss or vibration. both u-joints must be acounted for .
what I find many people get confused about is the difference between pinion angle & u-joint angle.
pinion angle is the difference between the angle of the engine (power output) & the angle of the pinion ( power input), in degrees.
u-joint angle is the angle from the transmitting shaft across the joint to the input or output.
example:
jacked up 4x4 truck.. engine level to ground 3 feet higher than pinion which is also level to ground.
pinion angle = 0 degrees
u-joint angle = 35 degrees
same 4 x 4, but engine is down in back 5 degrees to ground, pinion is up 3 degrees from ground.
pinion angle= 2 deg. down
u-joint angles =20 front 24 rear
hope this helps.. my fingers are tired from typing...
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