I bought a 2WD Kit from Bill Kasper's SA group Purchase:

http://members.cruzio.com/~cikasper/sa/sa.html

and I have two questions:

1) Anyone know of a source for the elusive 3.5mm spacers?

2) I think I read somewhere that the proportioning valve must
be adjusted to compensate for the larger brakes in the front.
Is this true?

Thanks,
Chris