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SVT Shelby GT500
Whats my most likely vibration cause?
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<blockquote data-quote="SCGallo2" data-source="post: 16377840" data-attributes="member: 160791"><p>I have a similar setup to yours, minus the AM wheels. Check your pinion angle with your suspension loaded... -2.0* is your target value. If your driveshaft is new, it is unlikely that it is causing the vibration because DSS does verify that each shaft is high speed balanced. However, the aluminum one-piece design is less forgiving than the OEM steel two-piece shaft (less dampening), so it will transmit more NVH from other driveline components; having swapped mine out a couple of times, I can attest to it.</p><p></p><p>Check that your brake rotor retainer clips are/were removed. They may interfere with flush mounting on some aftermarket wheels.</p><p></p><p>Next, I would have the wheels and tires road force balanced from a reputable establishment. I took mine to my local Ford Dealer and the machine cut the actual weight required for each tire from a solid thin lead strip, making installation cleaner looking and less chance of throwing weights at high speed.</p><p></p><p>Third, I would disconnect the driveshaft from the rear pinion flange, rotate the driveshaft 180*, re-connect it and re-torque bolts.</p><p></p><p>Lastly, I would replace your new wheels and tires with your original ones, if you still have them, or borrow a known good set from a buddy to rule out wheels and tires as the culprit.</p></blockquote><p></p>
[QUOTE="SCGallo2, post: 16377840, member: 160791"] I have a similar setup to yours, minus the AM wheels. Check your pinion angle with your suspension loaded... -2.0* is your target value. If your driveshaft is new, it is unlikely that it is causing the vibration because DSS does verify that each shaft is high speed balanced. However, the aluminum one-piece design is less forgiving than the OEM steel two-piece shaft (less dampening), so it will transmit more NVH from other driveline components; having swapped mine out a couple of times, I can attest to it. Check that your brake rotor retainer clips are/were removed. They may interfere with flush mounting on some aftermarket wheels. Next, I would have the wheels and tires road force balanced from a reputable establishment. I took mine to my local Ford Dealer and the machine cut the actual weight required for each tire from a solid thin lead strip, making installation cleaner looking and less chance of throwing weights at high speed. Third, I would disconnect the driveshaft from the rear pinion flange, rotate the driveshaft 180*, re-connect it and re-torque bolts. Lastly, I would replace your new wheels and tires with your original ones, if you still have them, or borrow a known good set from a buddy to rule out wheels and tires as the culprit. [/QUOTE]
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Whats my most likely vibration cause?
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