Interior bulbs?

[Shakey]

On the small panel above the fuses there are three small bulbs that lite the the instraments. One is for the seat belts, one for the rear defroster and a third for either the hand brake or reverse gear(?). There were no bulbs in my 72 when I bought it and the regular dash bulbs are too large in diameter to fit. Can someone tell me what sizes they are and if they are readily available at auto stores? Thanks.

[Zak's Z]

Heres a few spots I found interior bulbs, but I'd call to make sure theyre the right ones:

http://www.blackdragonauto.com/icatalog/z/0122.asp

http://www.datsunzparts.com/netscape/electricalsnew.htm

I dont know what the sizes are, but the part numbers should be listed in the parts-microfiche. I dont have it handy with me at work, if you want me to check send me a pm and when I get home I'll check. You may be able to call a dealer and ask if they can get the parts, or at least tell you specs of the bulbs.

Zak