Cobra / Making "thud" sounds when shifting

[Curt]

I haven't had a chance to drive another cobra other than mine, but mine is a 2003 and almost 50-60% of the time when I shift the car or push the clutch in to go into gear it makes a thud sound. Also there is a whinning sound when I put the car into neutral and let the clutch out. I have heard that sould before and I guess maybe these are just noisy transmissions in the cobras (not sure). So I am guessing the sound to be maybe the rear end or the u-joint. Its hard to describe, its not very loud, but it is very deep. Any help is appreciated. Thanks

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[Flyn]

Try looking under the car and see if you can see anything broken. I had a rear end mount that was fractured. It would bang occasionally. I found it when it finally broke through.

 

[rdsnake]

It's normal. Most cobra's do this.

Usually in the inner CV joints. I really wouldn't worry about it. However Id do a quick check of the rear end, just to make sure

 

[Jpatte]

Throw out bearing is sticking.

 

[Since 1964]

ME THINKS........Your clutch is out of wack and you are NOT disengaging all the way so when you shift into gear, the clutch is biting thereby making a thud sound as the gear goes in underpressure that is just so tiny, but yet, sounds like a thud. It's just takes a little twist of the firewall adjuster and you should be fine.
If you still have factory clutch adjustment, try that procedure. That is all.

 

[FuelSlut]

It's normal. Most cobra's do this.

Usually in the inner CV joints. I really wouldn't worry about it. However Id do a quick check of the rear end, just to make sure

Yea its pretty normal I think everyone gets this especially when the car is cold. But it may also be the rear end as RD SNAKE said very possible.