In a message dated 99-08-30 21:27:11 EDT, KENWILFY@AOL.COM writes:

<< They are in some '85 and all 86-91 Vanagons.  Yes you can retrofit one.
Look
 in the archives at http://www.vanagon.com to find out how. >>

theyre in all the GL models, from '85 up.  i think the '90-'91 non-GL models
didnt have the tach either.  theyre also in the '84 wolfy's.

chris