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Discussion Starter · #1 ·
I want to convert my Center High Mount Stop Light (CHMSL) to LED

Superbright offers 3 types of festoon Bulbs 30MM 37mm & 42MM

which one best fits the 2000 ext cab?

note: I think its one of the latter 2 as I want the 6 led version
 

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Discussion Starter · #2 · (Edited)
well seeing as there was no response i found a metric ruler I had laying around and measured my lamps 37 MM then ordered them correspondingly,

got them from Superbrights and took a housing I have here and did a test sizing before I opened the bag and found I got it right,
btw I did order the 6 panel light (3710 WWHP6) and it does fit in the area between the clenches perfect, so dont order the 44MM 8 panel light it wont fit!

since my current lens has a burn in it and is cracked I ordered a new one from the stealership, (GM part number 16520288 for ext cab models and only $22 w tax, about $12 cheaper than one found on ebay!) it should be here Tues since it had to come from Reno

when I get the new lens I will put them in and get some pics on here
 
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