T-3 headlight numbers?
12-30-2006, 08:29 PM
#1
Safety Car
Thread Starter
Member Since: Nov 2004
Location: going faster miles an hour...with the radio on in browns mills new jersey
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T-3 headlight numbers?
There are a some letters and numbers on the right hand side of the bulbs. Are these date codes or what? If they are date codes how do you decode them?
Examples:
S7
A3
S4
A4
S1
A4
S1
A7
Thanks
Examples:
S7
A3
S4
A4
S1
A4
S1
A7
Thanks
12-31-2006, 11:26 AM
#6
Safety Car
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Location: going faster miles an hour...with the radio on in browns mills new jersey
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56Heap - Thanks!
The numbers I listed in the first post are on the outside of the bulbs. Any idea about those?
The numbers I listed in the first post are on the outside of the bulbs. Any idea about those?
12-31-2006, 11:31 AM
#7
Team Owner
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Location: Washington Michigan
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Most likely they're supplier codes/mold numbers for the lens; Guide purchased the lenses from outside suppliers. 
12-31-2006, 11:44 AM
#8
Safety Car
I agree different letters are logos from different suppliers , Numbers are different molds in which the glass was made. Like on your engine you see in large letters GM= which is a logo ,then next to it a number 6 or 13 that is the mold number
