At 12:51 PM 9/5/2011, Trev wrote:
>I've got two different bulbs on my front signals/parking lights.
>What is the proper bulb designation for a '91 Vanagon GL?

For the '89 (and '84) VW specifies the 1034 bulb.  1157 is a
heavier-duty version of the same thing.  They're both double-contact
bayonet-base bulbs with 32 and 3 candlepower output.

Of course they specify (both years) the same bulb for the rear
stop/taillight, which is ridiculous since that needs two separate
bulbs; I believe the 1073 or 1156 are suitable for stop and the 68
for taillight.

Generally speaking any double-contact bayonet-base bulb with 32/3 cp
should suffice for the front, any single-contact bayonet-base 32 cp
bulb for the stop and any single-contact bayonet-base 3 cp for the
taillight.  Backup light is same as stoplight.  There's been a recent
trend for bulb numbers to proliferate, I believe.

The taillight bulb will be globe-shaped and smallish; the stop and
combined bulbs pearshaped and considerably larger.  But you knew that.

Yours,
David