Originally Posted by winmag4582001
Are you referring to the camber cam at the top of the yolk on the upper ball joint?
Yes sir. You'll need 2-3 degrees less camber (negative) to straighten your wheels back out after installing a spacer, but doing that with single eccentrics means that you won't have any adjustment left to get your caster where it needs to be. The double eccentrics are like 2 cams nested inside of each other and they will allow you to get both caster and camber back to factory spec.
It will drive just fine that way, but more caster than OEM spec would be even better. The only way to do that is to modify (or replace altogether) the radius arms so that they have more "built in" caster, like what WeldTec and Action Van do for their basic kits.
My stock E350 shocks were long enough to still allow some downwards travel after installing the spacers, but my buddies E150 shocks would not even bolt back up at ride height with the spacers, so you may or may not need longer shocks.
Here's some cams similar to what I'm talking about
: Alignment Caster Camber Bushing Caster Camber Bushing Fits 80 04 Ford F 250 | eBay
If you play your cards right, you can be leveled and aligned for ~$150-$200.