OP here, for the record.
I now have driven 40,000 miles on this 2004 E450 since late 2010, and early 2011 when I started this thread. I can assure you I have not experience any abnormal tire wear.
Just to recap how my DIY job unfolded.
1: Took it in for an alignment and all they did was tweak the toe and never touched the caster or camber.
2. In an RV park, I adjusted my existing Ingall concentrics for +2.0 more caster each side and set the Ingalls for 0.0 camber on each side.
3. Again in the RV Park, I tweaked the toe using a tape measure.
And now being 40,000 mile later I know it worked out good. Cheers
I now have driven 40,000 miles on this 2004 E450 since late 2010, and early 2011 when I started this thread. I can assure you I have not experience any abnormal tire wear.
Just to recap how my DIY job unfolded.
1: Took it in for an alignment and all they did was tweak the toe and never touched the caster or camber.
2. In an RV park, I adjusted my existing Ingall concentrics for +2.0 more caster each side and set the Ingalls for 0.0 camber on each side.
3. Again in the RV Park, I tweaked the toe using a tape measure.
And now being 40,000 mile later I know it worked out good. Cheers