Simple Glove box LED bulb.. heaps brighter then the older filament style bulb.
Check the image.. as production pre 71 were pretty much all this this type.. things changed a bit even year in year out going though the mid 70's..
This is a single base contact.. with small baynot.. twin pins across from each other at the same level.
Fits:
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67-71 Camaro
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74 & 77 Camaro
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67-71. 74 & 77 Firebird
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Impala 59-78
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Nova, Chevelle, GTO, LeMans, Skylark, Cutlass El Camino 62-71 minimum.
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Plus heaps more.