The 1968 specs for the rear Stop light bulb refer to a twin 25/3.2 Watt Bulb.

In a number of places this cross references to a Osram or Hella# 7528 which is a 21/5 Bulb. That would be ok except the problem is that the pins on this bulb are offset, whereas the fitting is not. This means the bulb doesn't fit properly.

I can find the N177382 Bulb which is a VW part and is 18/5. There is also a N0177372 Bulb which is also 18/5. What I can't see from the photos of these two bulbs is if these bulbs also have offset pins? What are others using?

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