So, after installing the VC lift I took the van to Les Schwab to have the toe-in adjusted, per VC's suggestion. Of course, they did a complete alignment inspection and informed me that I had to "take the van back to ProMaster" because the caster and camber were off and the only way to adjust it was to move the front sub-frame. Apparently that requires unbolting the engine and supporting it a special fixture (which only the dealers have) while the adjustment is made! They also said the rear alignment is off, which they also couldn't fix. After all that they refused to adjust the toe-in (which was off) because "if we can't do the complete job we won't do any part of it". Arrrgh. I have an appointment with a different shop on Monday to get the toe adjusted. Stay tuned.
On a different note, the van now has a definite shudder on moderate acceleration between 5 & 15 mph, or so. It is a bit worse if turning while accelerating. Feels like rear tire imbalance as I can feel it in the seat, but not in the steering wheel. I got all 4 tires rebalanced, but no improvement. I fear the additional u-joint angularity from the lift is causing this, although VC claims the u-joints remain within safe working limits. I believe I've read all the posts from those who have installed the VC lift, with no mention of this issue. Anybody?