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GEN 3 (2021+) Ford F-150 Raptor Forums
Ford F-150 Raptor General Discussions [GEN 3]
Does installing perch collars require headlight height adjustment?
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<blockquote data-quote="melvimbe" data-source="post: 1753741" data-attributes="member: 35314"><p>It is the same for cars and trucks, but my understanding is that the height on the wall should be a couple inches below the center line of your headlights. In other words, if your headlights are 40 inches high, for example, then the height on the wall should be 38 (or is it 36?). The point is though that the height of your beam is relative to your headlight.</p><p></p><p>Two things confuse me about this rule. One is that if you raise the height in the front and back equally, then there should be no need to adjust the headlights, correct? Headlight angle should be the same. It should only be when you adjust the height of the front or back unequally that the headlights will need adjusting.</p><p></p><p>Second, I don't understand why the height on the wall is relative to headlight height. That would mean that the higher the headlight, the farther the light will go before 'hitting the ground' and more likely to blind other drivers. Why wouldn't it be that you have a set height on the wall, so matter how high the headlights, it still covers the same distance on the ground (assuming it's downward angle still).</p><p></p><p>Is the point of the adjustment not about how far the light is thrown, but to have a downward angle that doesn't blind drivers?</p></blockquote><p></p>
[QUOTE="melvimbe, post: 1753741, member: 35314"] It is the same for cars and trucks, but my understanding is that the height on the wall should be a couple inches below the center line of your headlights. In other words, if your headlights are 40 inches high, for example, then the height on the wall should be 38 (or is it 36?). The point is though that the height of your beam is relative to your headlight. Two things confuse me about this rule. One is that if you raise the height in the front and back equally, then there should be no need to adjust the headlights, correct? Headlight angle should be the same. It should only be when you adjust the height of the front or back unequally that the headlights will need adjusting. Second, I don't understand why the height on the wall is relative to headlight height. That would mean that the higher the headlight, the farther the light will go before 'hitting the ground' and more likely to blind other drivers. Why wouldn't it be that you have a set height on the wall, so matter how high the headlights, it still covers the same distance on the ground (assuming it's downward angle still). Is the point of the adjustment not about how far the light is thrown, but to have a downward angle that doesn't blind drivers? [/QUOTE]
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GEN 3 (2021+) Ford F-150 Raptor Forums
Ford F-150 Raptor General Discussions [GEN 3]
Does installing perch collars require headlight height adjustment?
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