In a message dated 98-06-18 21:20:32 EDT, hilltech@NETINS.NET writes:

<< Can the complete instrument cluster with a clock interchange with one
 that has a tachometer without problems, damage, modifications, etc. on
 83.5 to 85 Vanagons.  I have the two units here, and don't have the
 nerve to plug 'er in & let 'er smoke.

 Chuck Hill
  >>

this retrofit is in the archives.  you'll need to run a wire from coil to
14point multi-pin connector for the tach, and do a bit of pin swapping, but it
works.

chris