This has been done on The Samba with pictures-
http://www.thesamba.com/vw/forum/viewtopic.php?
t=273226&postdays=0&postorder=asc&highlight=led&start=60

On Mon, 8 Jun 2009 01:16:30 -0400, Robert Stewart <robertmstewart@MAC.COM>
wrote:

>Thanks Mike for compiling all this great info. Can't wait to try it out.
>
>Rob
>NY
>
>On Jun 8, 2009, at 12:22 AM, Michael Hart wrote:
>
>> Most of this information was posted by others a few months ago, but
>> I thought I would post this 'complete' list based on my further
>> research and installation of LED bulbs in many places in my '87 Westy.
>> The only comprehensive vendor I have found is www.superbrightleds.com
>> The following information should make sense once you look at their
>> site.
>>
>> All are direct plug-ins, with the exception of the heater control
>> LEDs, which will require some dexterity with a soldering iron to
>> assemble them into the existing fittings
>>
>> 1). Instrument Cluster: Quantity: 4: Product: B8.3D-x Instrument LED
>> bulb $ 1.59 (each): Options: White B8.3D-W  (Blue & Red also
>> available)
>> (Alternative: High powered version B8.3D-xHP $2.59 each)
>> 2). Heater controls: Quantity:  2: Product: 74-x Wedge Base LED bulb
>> $ 1.19 (each): Options: White 74-W
>> 3). Interior light (above driver): 42mm festoon bulb: Quantity:
>> 1:Product: 4211-x6 LED Festoon bulb $ 3.70 (each): Options: Natural
>> White 4211-NW6 (Warm & Cool whites, Blue also available)
>> (Alternative: you can also pick more powerful versions of the 42mm
>> festoon bulbs). I believe these are the size you also need for the
>> camper light over the stove (but I replaced mine with a Thinlight
>> fluorescent fitting a while back, so can't be sure).
>> 4). Interior light (in dash above glove box): 30mm festoon bulb:
>> Quantity: 1: Product: 3022-x4 LED Festoon bulb $ 2.84 (each):
>> Options: Natural White 3022-NW4 (Warm & Cool whites, Blue also
>> available)
>> 5). Exterior rear side marker lights: Quantity:2: Product: BA9s-x-
>> x-12V Wide Angle bulb $ 0.98 (each): Options: 120 Degree  Red BA9s-R-
>> x-12V
>>
>>
>> The end result: a bright white look (or blue or even red if you so
>> desire...) to your interior lights and what I would call a more
>> 'modern' look to your instrument panel (& better visibility).
>> Hope these instructions are clear to you.
>>
>> Mike,
>>
>> '87 Westy
>>
>>