quote:Originally posted by mpaschetto:
..the most important factor is to align the input and output shafts identically.
Driveshaft phase seems to be very important too.
The actual U-joint angle seems less important as far as vibration is concerned, but is important for longevity.
At least that's my take...
Good take...
again, don't feel like doing any math; I think the "angle" determines how much the mid shaft jerks. If the two flanges are EXACTLT the same angle, there will be no rotational jerk in the drivens rotation.
The midshaft jerking wears the ujoints, splines AND induces its vibration to the elements it is attacted to.
THEN, with the two flanges slightly mis matched, the magnitude of the force transmitted depends upon the magnitude of the midshaft jerk.
(I don't think I am conveying thought)
first, the transaxle MUST be set level so that its flange faces are true, then with "O" camber the two end's angle will be the same.
Like the Spicer recomendation to keep the angle under 3 degrees, they recomend the differance be less than 1 degree. Thus setting camber to 30' (half of a degree) would be within thier limit