Adjustment sleeves are generally not required unless your tubes are bent. they are mainly used in ford TTB front ends. They can be used if your alignment shop finds the angle to be off. I installed the standard slieve (0 degree, came with the ball joint) and the allignment was well within spec.
to adjust pre-load:
1. Leave top pre-load sleeve out.
2. Install knuckle and install castellated nut on lower ball joint and tighten to factory spec.
3. Thread in the pre-load sleeve into the top ball joint and tighten to 50Ft/Lbs.
4. Install the castellated nut on top of the pre-load sleeve and tighten it to factory spec.
Once finished grease up the joints. the knuckle should be fairly stiff but able to be moved by hand.
I was never able to 100% confirm the torque setting for pre-load in any paper manual but the many interweb references and the 40,000 miles I have on my front end after rebuild say it is a safe bet. If anyone can point to a factory manual that shows the pre-load torque I would appreciate it myself.
Hope that helps.
Cheers,
Rufus