> This is also 19986+  but you might look around Ron's page or ask him for
> prior stuff:
>
<http://www.busdepot.com/watersyncro.htm>

I do have the earlier diagrams up as well.  For '83-85,
http://www.busdepot.com/water19.htm . For 2WD '86-up,
http://www.busdepot.com/water21.htm .

- Ron Salmon
  The Bus Depot, Inc.
  http://www.busdepot.com
  (215) 234-VWVW