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S-197 Mustangs
Front wheels stick out unevenly
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<blockquote data-quote="Norm Peterson" data-source="post: 16235262" data-attributes="member: 193960"><p>It's also at the mercy of the tech who set the targets up on the wheels. Do not assume perfection, or even perfect repeatability to imperfect setup, here.</p><p></p><p>On the other hand "eyeballing" cambers is subject to its own sources of error - it kind of depends on what you're looking at and what you may be subliminally seeing in the background. Just this difference in "tuck" or whatever could be at play here. Keep in mind that I'm having to see all of this with a "mind's eye" because I wasn't there.</p><p></p><p></p><p></p><p>It shouldn't, and having the right side tire intentionally set at a slightly more negative amount of camber than the left side tire is commonly done anyway (this - it's termed "cross-camber" - helps keep the car from running downhill toward the gutter on roads that are 'crowned' for drainage reasons).</p><p></p><p></p><p></p><p>Are you measuring this while the car is up on the alignment rack, or later in some other location? If it's somewhere else, have you carefully measured your setup area for levelness (at least side to side)? And either made it level somehow or accounted for it with a little math?</p><p></p><p>As an example, my driveway is pretty close to level, being only about 1/16" out of level in 60" or so width (about one Mustang track width). That means if I was to measure the right and left side cambers to both be, let's say -1°, that what I've really got would be -0.94° on the "high side" wheel and -1.06° on the low side wheel. That's over a tenth of a degree on what's a very good surface for being a residential driveway.</p><p></p><p>Something like that can also happen if your front tires are not evenly worn, or are unequally inflated. What if there's a little of all three effects going on . . .</p><p> </p><p></p><p></p><p>This is also affected by sheetmetal and overall build tolerances. I wouldn't trust this to be any closer than 1/8", not counting any tire difference-caused errors.</p><p></p><p></p><p>Mustangs are series-produced production line cars, not a small run of "one-offs" built on precision chassis jigs. My point here being that it's not worth trying to be this anal about getting these things "perfect". You'll drive yourself nuts, or at least to drink, first. Might be better off getting the fenders gently reworked to even up the "tucks" once you've decided on camber settings.</p><p></p><p></p><p>Norm</p></blockquote><p></p>
[QUOTE="Norm Peterson, post: 16235262, member: 193960"] It's also at the mercy of the tech who set the targets up on the wheels. Do not assume perfection, or even perfect repeatability to imperfect setup, here. On the other hand "eyeballing" cambers is subject to its own sources of error - it kind of depends on what you're looking at and what you may be subliminally seeing in the background. Just this difference in "tuck" or whatever could be at play here. Keep in mind that I'm having to see all of this with a "mind's eye" because I wasn't there. It shouldn't, and having the right side tire intentionally set at a slightly more negative amount of camber than the left side tire is commonly done anyway (this - it's termed "cross-camber" - helps keep the car from running downhill toward the gutter on roads that are 'crowned' for drainage reasons). Are you measuring this while the car is up on the alignment rack, or later in some other location? If it's somewhere else, have you carefully measured your setup area for levelness (at least side to side)? And either made it level somehow or accounted for it with a little math? As an example, my driveway is pretty close to level, being only about 1/16" out of level in 60" or so width (about one Mustang track width). That means if I was to measure the right and left side cambers to both be, let's say -1°, that what I've really got would be -0.94° on the "high side" wheel and -1.06° on the low side wheel. That's over a tenth of a degree on what's a very good surface for being a residential driveway. Something like that can also happen if your front tires are not evenly worn, or are unequally inflated. What if there's a little of all three effects going on . . . This is also affected by sheetmetal and overall build tolerances. I wouldn't trust this to be any closer than 1/8", not counting any tire difference-caused errors. Mustangs are series-produced production line cars, not a small run of "one-offs" built on precision chassis jigs. My point here being that it's not worth trying to be this anal about getting these things "perfect". You'll drive yourself nuts, or at least to drink, first. Might be better off getting the fenders gently reworked to even up the "tucks" once you've decided on camber settings. Norm [/QUOTE]
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Front wheels stick out unevenly
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