haha! I have only been able to find those bulbs at GM dealerships! hopefully soon the aftermarket eill get their butts in gear and make em!
i once tried to pull the housing apart to see if i could put a mini bulb from radioshack inside the housing but no dice, ended up getting the dealer bulbs fer the customer.
sorry no better news fer ya!
though i wonder about using those newer LED's but you would have to get a resistor inline with it and takes more space lol
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Psychotic Gearhead/Redneck/Mekanik
94 Olds 442 Twin engine's! 6.9L/425 cu inches and 12 cylinders!
13.81 @ over 98 MPH! consistent 1.9s 60'!