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Old 02-19-2017, 06:57 PM   #7
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Join Date: May 2011
Location: Goliad, TX
Posts: 653
Re: anyone upgrade their headlight on a 91 blazer k5?

I'm not sure those headlights will fit your 91 K5. I believe they are 150mm by 92mm or 5.9 inches by 3.6 inches roughly. The ones I have are made by Bosch and use Hella H4 bulbs, P/N HL21001

I wired up my own relays but you can buy the kit also.
1990 ton 4x4 Chevy Suburban
-Cummins Diesel - 12 valve - factory rebuilt
-6 speed bullet proof manual transmission - NV5600
-Gear Vendors Overdrive - HX35 Holset Turbo
-NP205 iron transfer case
-3.73 gears -2" Lift
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