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73-87 Chevy _ GMC Trucks => Interior & Equipment => Topic started by: Harmon on July 18, 2019, 08:34:25 am

Title: What bulb do I need to use?
Post by: Harmon on July 18, 2019, 08:34:25 am

86 Chevrolet c10

My truck never had a bulb in the courtesy light under the dash.  Anyway yall can inform me on what bulb to use? 

Title: Re: What bulb do I need to use?
Post by: bd on July 18, 2019, 03:18:26 pm

Look inside the socket.  If there is only one electrical contact centered within the base of the socket use bulb #1003.  If there are two electrical contacts at the base of the socket use bulb #1004.

Title: Re: What bulb do I need to use?
Post by: 78 Chevyrado on September 05, 2019, 07:59:28 pm

IIRC correctly, an 1156 fits in there.  I think thats what I have in there, cuz I want it super bright.  I had this in all my trucks with no problems.  it will work but be super bright.