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Old 08-02-2004, 03:57 PM   #1
1968GMC
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clearing light

What are they for really?
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Old 08-02-2004, 05:45 PM   #2
Gee_Emm
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You mean clearance lights, that are on the roof?
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Old 08-02-2004, 05:49 PM   #3
1968GMC
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yes those
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Old 08-02-2004, 10:30 PM   #4
Longhorn Man
its all about the +6 inches
 
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I have been told that they are to let on coming traffic know that a wider vehicle is headed towards them at night...the 3 center ones are supposed to catch your eye, and then when closer, the outer ones are to help you get a visual on the trucks exact location in the lane. That is why it has pretty much always been required on any pick up with daul rear tires and anything bigger than a regular pick up.
Again, this is just what I have been told.

On a smaller truck, it is just for looks.
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Old 08-03-2004, 12:06 AM   #5
Fred T
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Longhorn man is on the right track. While it's been a long time since I drove for a living, clearance and marker lights are required on vehicles that are over a certain width. Can't recall the exact dimension, but I do know that the duals on a one ton pickup are above the dimension. Clearance lights are on the corners, markers are the three in the center.
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