First, a bit about what I'm experiencing:
When I get up to ~60mph and above (have really only tested to about 80mph), I'm getting this shimmy in my seat, the pedals, and the shifter... maybe a bit in the steering wheel too. I want to say that the oscillation frequency is close to the tire rotation frequency - so it may be as simple as tire imbalance. But, the fact that it gets worse when I push the gas a bit has me thinking driveshaft or component in that stream. It does shimmy when I let off the gas, but eventually goes away as I coast to a slower speed. I also believe I'm getting the same behavior whether I'm in 4th, 5th, or 6th gear. If I just hold throttle constant it feels like it comes on for 30 seconds, then goes away, comes back, etc. Also I'm a track pack, performance pack, with 38k miles, and newer Michelin Pilot Sports. Otherwise stock suspension. The car is a dream to drive otherwise.
A lot of my searching on svtp takes me back a few generations so not specific help to the Trinity. I found a good thread on another site: http://themustangsource.com/forums/f804/driveline-vibration-65-85mph-521314/
TLR - many 2014 GT owners (not GT500) pursued a fix at the dealer under warranty. Many dealers claimed either tire balance issue, or if the driveshaft was suspect that it was still in spec. Many folks recommend a single piece carbon drive shaft, such as: http://www.americanmuscle.com/dss-cf-driveshaft-1314gt500.html - But that's $1400 for just the part alone.
I figured I'll take it in to get the tire pressure / balance / alignment checked first and go from there. Was actually planning on buying the eibach pro lowering springs, bolts, and panhard bar. So I may still just go through with that instead of having to pay for two alignments.
Just looking to see if others experienced this and solved it. :beer:
When I get up to ~60mph and above (have really only tested to about 80mph), I'm getting this shimmy in my seat, the pedals, and the shifter... maybe a bit in the steering wheel too. I want to say that the oscillation frequency is close to the tire rotation frequency - so it may be as simple as tire imbalance. But, the fact that it gets worse when I push the gas a bit has me thinking driveshaft or component in that stream. It does shimmy when I let off the gas, but eventually goes away as I coast to a slower speed. I also believe I'm getting the same behavior whether I'm in 4th, 5th, or 6th gear. If I just hold throttle constant it feels like it comes on for 30 seconds, then goes away, comes back, etc. Also I'm a track pack, performance pack, with 38k miles, and newer Michelin Pilot Sports. Otherwise stock suspension. The car is a dream to drive otherwise.
A lot of my searching on svtp takes me back a few generations so not specific help to the Trinity. I found a good thread on another site: http://themustangsource.com/forums/f804/driveline-vibration-65-85mph-521314/
TLR - many 2014 GT owners (not GT500) pursued a fix at the dealer under warranty. Many dealers claimed either tire balance issue, or if the driveshaft was suspect that it was still in spec. Many folks recommend a single piece carbon drive shaft, such as: http://www.americanmuscle.com/dss-cf-driveshaft-1314gt500.html - But that's $1400 for just the part alone.
I figured I'll take it in to get the tire pressure / balance / alignment checked first and go from there. Was actually planning on buying the eibach pro lowering springs, bolts, and panhard bar. So I may still just go through with that instead of having to pay for two alignments.
Just looking to see if others experienced this and solved it. :beer: