some helpful info on rear drive shaft angle regarding wether or not you need a sye or at least a tcase drop

The worst possible setup you can have is a 96+ with an autotransmission, a NP242 transfer case, and an 8.25 rear axle. This combo makes for a long drivetrain and the 8.25 pinion housing is also quite long. These factors will leave you with a short rear driveshaft and even a 2" lift will see negative affects from it.

The best setup for less noticeable vibration would be a 84-95 with a manual trans, a NP231 transfer case and a D35 rear axle. The 84-95 slip yoke was shorter than the 96+. The Manual transmissions are shorter than the auto transmissions. The NP231 is shorter than a NP242 transfer case. The D35 has the shortest pinion housing, followed by the D44 and the longest is the 8.25.

http://www.jeepforum.com/forum/f11/o...l-read-426483/

longer drive shaft = less angle on the drive shaft

 

I know my shocks suck as well. Some hydro 7000 or something like that. Super stiff when cold then when they warm up it's stiff and bouncy. The front isn't terrible. But the rear makes me want to take a leaf out.

 

I have blocks in the rear