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Mustang Forums
2011-2014 Mustangs
Driveline/Suspension
2013 8.8 rear end and dealer issues
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<blockquote data-quote="nosympathy" data-source="post: 13500074" data-attributes="member: 151682"><p>Why not? Read below. He has it right on. You are putting a lot more force at non normal angle on the pinion bearing. Why wouldn't this affect it? </p><p></p><p></p><p></p><p>agreed. I meant to measure my stock setup when I dropped 2.4" for pinion angle but never did. Based on how it looked I would have guessed it around a +6 to +8. (100% guess based on how I remember it looking and how -6 looked when I was setting my pinion angle the last time, and it started right at about -6. So looking at that angle being in reverse.)</p><p></p><p>When we set pinion angles on these car we usually set them at -1 to -3 depending. That way during acceleration and then of course gear climb they go closer to a 0 pinion angle. If you have a +6 pinion angle for example, it would very well be changing to +8 while under WOT.</p><p></p><p>Also seems not all cars act the same. When I first set the pinion angle to -2 on my UCA the car loved it and drove vibration free. Then after having Beefcakes buddies at Finish Line resetup the rear end and now the ds vibrates at a -2 but not at a -2.3 which is where it is set now. Seems like nothing, but that .3 was all I needed to 100% stop the vibrations.</p></blockquote><p></p>
[QUOTE="nosympathy, post: 13500074, member: 151682"] Why not? Read below. He has it right on. You are putting a lot more force at non normal angle on the pinion bearing. Why wouldn't this affect it? agreed. I meant to measure my stock setup when I dropped 2.4" for pinion angle but never did. Based on how it looked I would have guessed it around a +6 to +8. (100% guess based on how I remember it looking and how -6 looked when I was setting my pinion angle the last time, and it started right at about -6. So looking at that angle being in reverse.) When we set pinion angles on these car we usually set them at -1 to -3 depending. That way during acceleration and then of course gear climb they go closer to a 0 pinion angle. If you have a +6 pinion angle for example, it would very well be changing to +8 while under WOT. Also seems not all cars act the same. When I first set the pinion angle to -2 on my UCA the car loved it and drove vibration free. Then after having Beefcakes buddies at Finish Line resetup the rear end and now the ds vibrates at a -2 but not at a -2.3 which is where it is set now. Seems like nothing, but that .3 was all I needed to 100% stop the vibrations. [/QUOTE]
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2011-2014 Mustangs
Driveline/Suspension
2013 8.8 rear end and dealer issues
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