Vibrations when at upper RPM's

[THR]

I just recently purchased my 2013 GT500. I sold my 2012 CTSV Wagon to get it. Long story short, I was racing another cts-v buddy and noticed alot of vibrations in the upper RPM's. My cts-v was extremely smooth at upper RPM's (even with heads/cam) so I am not used to this. It is smooth in all other situations. It almost feels as if a driveshaft is unbalanced.

Is this common with the trinity shelbies? Is there a remedy for this??

2013 gt500 1200 miles

 

[jbs$]

Where are you shifting?

 

[THR]

Just shy of redline when racing

 

[raustin0017]

I got 4500 miles on mine with zero vibrations at any RPM.

 

[07 Black Beauty]

Stock rims, tires and suspension?

 

[phil123]

Doesn't sound right.

 

[VFORCEJOHN]

Mines surprisingly smooth to 7k, I've even bumped the limiter a few times in 1st.

possible bad drive belt?

 

[Tob]

You didn't say it.....you purchased this used? Stock rubber in good shape out back?

 

[FordService]

I just recently purchased my 2013 GT500. I sold my 2012 CTSV Wagon to get it. Long story short, I was racing another cts-v buddy and noticed alot of vibrations in the upper RPM's. ...

THR,

Let me see how I can help. PM me your name, phone number, VIN, mileage, and dealer info. I'll take a look.

Ashley

 

[paluka21]

I know some folks have had problems with bent axles on their stock cars. Might be worth looking into, but then again could be unrelated. From what I recall, owners were jacking up the rear of their cars, and spinning the rear wheels to look for wobble.

 

[THR]

Guys, it ended up being a bad rear end. The rear was warrantied and all is good!

 

[ThomasL]

Guys, it ended up being a bad rear end. The rear was warrantied and all is good!

Damn. Glad it's covered. Should be good as new soon.

 

[tomshep]

Guys, it ended up being a bad rear end. The rear was warrantied and all is good!

What exactly was bad?

Did they replace the entire unit or rebuild?

More info is appreciated since a number of people are having rear end issues.

Tom