Andrew,

IIRC pitman arms belong to wormgear steering systems rather than rack
and pinion systems like those on Vanagons (T3's). You may also want to
calrify that your shipper is in COMPTON, California rather than
Crompton.

Used suspension uprights are cheap if you take them out yourself.
Otherwise, it is cheaper to buy new ones. You can use your old
uprights if you weren't doing the brake change.

BenT