Excessive drive line noise/movement? - Ford Mustang Forum
 
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post #1 of 4 (permalink) Old 12-17-2015 Thread Starter
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Excessive drive line noise/movement?

Good Morning all.




Good Morning all, I am going to try to explain this the best I can. I have a 2012 GT with 38,000 miles. At low speeds (parking lot speeds) in first and sometimes second gear I can hear and feel what sounds/feels like something is rocking back and forth somewhere forward of the shifter. If it was a broken/loose engine mount Id expect damage on the inside of my hood and I donít have any damage to the hood. Is this the two piece drive shaft? The car has been modified with: Ford Racing K springs, Koni Yellow adjustable shocks, castor camber plates, factory strut tower bar, rear control arm relocation brackets, adjustable pan hard bar, and a HURST shifter. PHEW. I listed all mods so you can see what Iíve done (all installed by me). Iíve checked all the bolts and fasteners that Iíve touched and they are torqued to spec.

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post #2 of 4 (permalink) Old 12-17-2015
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Does it happen right after you shift/hit the clutch? If so that's pretty normal and it's from the 2 piece driveshaft. I've noticed that it'll also happen when you let off the gas quickly in low gears- like in all manual cars, at low gears the car becomes that much more sensitive to throttle inputs and you'll feel the driveshaft lash around a little.


2011 Sterling Gray Metallic 5.0 GT Premium, Manual, 3.73, Brembo, HIDs

Mods: 2010 AM GT500 wheels + Bridgestone Potenza S-04, GT500 axleback, MGW race spec, FRPP P springs, KONI STR.T struts/shocks, Steeda adj. panhard, BMR rear LCAs+relocation brackets
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post #3 of 4 (permalink) Old 12-17-2015 Thread Starter
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Quote:
Originally Posted by amabhy View Post
Does it happen right after you shift/hit the clutch? If so that's pretty normal and it's from the 2 piece driveshaft. I've noticed that it'll also happen when you let off the gas quickly in low gears- like in all manual cars, at low gears the car becomes that much more sensitive to throttle inputs and you'll feel the driveshaft lash around a little.


Yes, exactly, it is when shifting if I am not smooth or if I get on the throttle hard from part throttle or off throttle abruptly. Another reason for a one piece drive shaft!
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post #4 of 4 (permalink) Old 12-18-2015
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Quote:
Originally Posted by Usmc1488 View Post
Yes, exactly, it is when shifting if I am not smooth or if I get on the throttle hard from part throttle or off throttle abruptly. Another reason for a one piece drive shaft!

Don't expect a one piece shaft to completely fix it. There is still a bit of normal lash in the ring and pinion too.


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