1987 V20 headlights

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Wolverine

Junior Member
Joined
Jul 25, 2022
Posts
16
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Location
Montana
First Name
C.A.
Truck Year
1987
Truck Model
V20
Engine Size
5.7
Needing replacement headlights on my 1987 V20, the existing ones are clearly marked, "2A1" on upper set low beam, and "1A1" on lower ones high-beam. All the parts sites I am looking on are showing one all around replacement headlamp "guaranteed to fit" with no differentiation. What pertinent information am I missing ??
 
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AuroraGirl

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Location
Northern Wisconsin
First Name
Taylor
Truck Year
1978, 1980
Truck Model
K10, K25
Engine Size
400(?), 350
Needing replacement headlights on my 1987 V20, the existing ones are clearly marked, "2A1" on upper set low beam, and "1A1" on lower ones high-beam. All the parts sites I am looking on are showing one all around replacement headlamp "guaranteed to fit" with no differentiation. What pertinent am I missing ??
im guessing that differentiates the intended use of the lamp. if you are using halogen, id go to the auto store and buy a high and lo beam for an 87 with quad head lamps. I cant imagine they had other options. The low beam probably has a feature to reduce glare at the tip of the filament while the hi beam probably does not
 

codfish

Drive a hybrid. I NEED your gas!!
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Location
Newfoundland
First Name
gary
Truck Year
84
Truck Model
K10
Engine Size
350
Where I live I had trouble finding replacement headlights for my 84, with quad lamps. When I did they were $20 a pop. I’m cheap. I held off buying them. While in Walmart one day I wandered down to the auto isle and found my headlights, both upper and lower, on clearance for $3 EACH!!!

Score
 

Craig 85

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Nashville, TN
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Craig
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1985
Truck Model
K30 SRW
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454/TH-400/NP205
The upper bulb is a low and high beam (3 prongs). The lower position is high beam only (2 prongs).
 

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