Excuse me, That's "Virtually no angle" instead of "Vertically no angle"
below.  In other words, almost straight from the pinion to the the angle at
the transfercase.

Bill

Maybe, not in every case however. The shims may help for vibration but they
don't compensate for a short shaft (stop giggling).

Ideally you want the angle of the output shaft the same as the pinion. You
are correct in your statement. The setup you have right now would be ideal
for the SYS/Driveshaft - all of the angle at the output shaft and maybe 1*
at the pinon.

In therory, yes but I wouldn't bother too much trying to compensate for
that. Work with an angle finder and fine tune by the seat of your pants for
regular driving.

Local spring shops may have an assortment handy. They might let you try a 4*
and exchange it for a 3* etc.
http://www.4crawler.com/4x4/ForSale/Shims.shtml
http://www.djmsuspension.com/Products/Tech/PinionShims.htm
Any offroad shop wil have them.

You may have shims in there now, I can't tell from where I'm sitting. I
would start from the bare spring perch and use one correct shim.

Not without a camcorder handy... I wanna see this!
The shims are held onto the spring by the cantering pin which goes through
the middle of the shim. If you stacked washers on the pin the only thing you
would achieve is the worlds cheapest lift/lowering block (SOA/SUA). If you
tried to stack them at the front of the perch, they would shoot across the
room as soon as you put weight on the them.

Shackles will also change pinion angle but will affect your amount of lift.

-Brian

Hi,

1. Drop the tcase xmember 3/4".

2. Put the Jeep on a level surface with normal load inside.

3. Use an angle finder on the slip yoke to measure the tcase output
shaft angle.

4. Measure the pinion angle. Back of the diff housing makes a good
perpendicular surface for the angle finder.

5. Subtract your tcase angle from your pinion angle. This is exactly how
many degrees you need to drop the pinion. If you round it off, round up
to account for axle wrap.

6. Figure out what your drive shaft angle will be relative to the pinion
 & tcase once they are parallel. If this relative angle is greater than
15 degrees, you'll have trouble eliminating vibes and your joints will
wear quickly.

Beg or borrow shims from local Jeep club/garage or buy new:

  http://www.rubiconexpress.com/dynamic/mainpage.asp?folderid=229

Depending on the depth of the shims, you may also need center pins with
longer nubs.

Better yet, cut your spring perches off and re-weld them for precisely
the angle you want.

Steve