After my trip to the VW graveyard to find stock spring seats I found them
not even taken off the vehicle yet AND they were only about 1/8 inch thick
anyway. An unproductive journey.

I wondered on the way home if anyone has ever switched springs on the back
from left to right and visa versa to correct for the sway to the left?

Because the front springs are so much more work, new springs seem like a
better idea there, or using a 1/2 inch plastic kitchen cutting board to make
a custom made leveling shim for the front left as one archive post suggested
(For front 5 & 3/8 diameter with 3 & 1/2 hole in the center.) I found
archive measurements for the back shim also made from a 1/2 inch plastic
kitchen cutting board (6 and 1/4 inch diameter and 1 & 3/4 inch center
hole.)

Has anyone on this list ever switched springs on the rear to correct for the
sway?

William Polowniak
1989 Vanagon GL
1988 Mercedes 300 SE