lift induced vibes VS years.

Some of my reading here leads me to think different years of XJ`s using the same lift will have different levels of vibes. Even if the yoke angles are within 1.5 degrees does it still exist? does the SYE really eliminate them fully, or the CV shaft upgrade. How far can you go before it typically starts on a 95 up?
Thanks guys.

96-and-up actually. There is no 'typical' height, I know some people here have had vibes with the late-model t-case after only a few inches height, and there is a factory bulletin advising the installation of a t-case drop on late-model stock Cherokees at the dealerships. Before 96, that wasn't so much of a problem although the design of the t-case prevents you from running the Jeep if damage forces you to remove the rear driveshaft.