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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford F-150 Raptor General Discussions [GEN 2]
Help Me Trouble Shoot: Cupped Tires and Front End Rattle
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<blockquote data-quote="Rustler" data-source="post: 1552116" data-attributes="member: 31456"><p>@smufslayer, This is decidedly NOT even treadwear that is excessive on the inside. Every other tread block (on the inside) is more worn than the one before or after, and more worn at the front than the back of the tread block. That's why I tend to think that the failure to cross rotate (and therefore get that inside edge of the front tire to the outside after rotation) didn't c<em>ause</em> the cupping, but rather exacerbated it. The tech and head of service at the dealership both agree that it looks like "cupping" not excessive wear on the inside.</p><p></p><p>Interesting thing about the rattle is that it is not incident to suspension travel. When I compress the suspension on a road dip or undulation it compresses quietly and smoothly (as far as I can tell from the drivers seat). It is hitting a pothole, road seam, join in the pavement, or other very small but sharp road imperfection that I hear it. It's at it's worst on a wash boarded dirt road, or a rocky jeep trail. </p><p></p><p>You raise an interesting question about whether the noise is on both shocks, or just one. As I mentioned above, the tech is telling me that using chassis ears he thinks he has isolated the noise to the shock assembly, but he didn't specify right, left or both, and at the time I didn't think to ask. I will ask when I follow up with them, hopefully today or tomorrow. </p><p></p><p>Got some pics last night. Here they are.</p><p></p><p>I appreciate the input so far, Thanks.</p><p>[ATTACH=full]154194[/ATTACH] [ATTACH=full]154195[/ATTACH]</p><p></p><p>[ATTACH=full]154196[/ATTACH]</p></blockquote><p></p>
[QUOTE="Rustler, post: 1552116, member: 31456"] @smufslayer, This is decidedly NOT even treadwear that is excessive on the inside. Every other tread block (on the inside) is more worn than the one before or after, and more worn at the front than the back of the tread block. That's why I tend to think that the failure to cross rotate (and therefore get that inside edge of the front tire to the outside after rotation) didn't c[I]ause[/I] the cupping, but rather exacerbated it. The tech and head of service at the dealership both agree that it looks like "cupping" not excessive wear on the inside. Interesting thing about the rattle is that it is not incident to suspension travel. When I compress the suspension on a road dip or undulation it compresses quietly and smoothly (as far as I can tell from the drivers seat). It is hitting a pothole, road seam, join in the pavement, or other very small but sharp road imperfection that I hear it. It's at it's worst on a wash boarded dirt road, or a rocky jeep trail. You raise an interesting question about whether the noise is on both shocks, or just one. As I mentioned above, the tech is telling me that using chassis ears he thinks he has isolated the noise to the shock assembly, but he didn't specify right, left or both, and at the time I didn't think to ask. I will ask when I follow up with them, hopefully today or tomorrow. Got some pics last night. Here they are. I appreciate the input so far, Thanks. [ATTACH=full]154194[/ATTACH] [ATTACH=full]154195[/ATTACH] [ATTACH=full]154196[/ATTACH] [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford F-150 Raptor General Discussions [GEN 2]
Help Me Trouble Shoot: Cupped Tires and Front End Rattle
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