You are close...
Installing a SYE moves the slip yoke from the T-case output ( making it fixed ) to the driveshaft itself. The Double Cardan joint of the ( CV ) drive shaft is the key component to cancelling vibrations of unequal driveline angles when set up properly... which would be inline with the pinion output of differential. For this reason it is required to rotate the pinion upward to point directly at the t-case output... allowing the double cardan joint to cancel the vibes by splitting the difference in angles between the two ujoints within the double cardan H-Yoke.
~Todd~ 2004 X 4.0 5 speed---SOLD
4" Lift, 4.56's, 33" Duratracs on M/T Classics
RR SYE, Tatton CV, MML, BL, TT, Dynomax Exhaust
Hella Lighting: Driving, Fogs and H4 E-Codes
... and NEVER will be