Here... Here!...
I agree...
Take a piece of cardboard, cut or drill 8 holes in it... Now take a hobby knife and cut 8 more slits in the cardboard... Put your shock bodies in the holes and fill the shocks 3/4 the way, with oil...
And... Wait...
Wait a few mins. and wait for the bubbles to disapear, then, "Cycle" the shock shaft up and down, a few times (to remove the bubbles)
Then wait some more...
Place the caps in the slits you made eairler, now fill the shock caps too...
I fill the caps with oil (Just a bit of oil, enough to cover the bladder,) Cycle the shafts a few more times.
Cycle the shock shaft again (just for good measure) Remember $1000 truck, you want it to handle, don't you? So take your time
Fill the rest of the shock with oil... And wait some more... Remember air bubbles are the enemy!!!
Put on the shock cap, but wait... don't tighten it all the way!!!!!!
Put the cap on and tighten it a couple turns, while you cycle the shock shaft! (this is important!) FEEL FOR BUBBLES!!!
While you cycle the shock shaft, then tighten the cap... I move the shaft up about, (3/4) the the body, then tighten the cap...
If you assemble the shock, (Ie tighten the cap) with the piston at the bottom it will not compress fully after assembly, the shock will, "Lock up" in midway of the stroke. Let the shock oil "Bleed" and things will be fine.
Check the action of the shock, if all is well, then you have properly assembled the shock!
Check to make sure all shocks move the same and have the same rebound.
Hope this helps,
Trip/Chad..