I dont know what this is...im thinking motor mounts or something..

when i am bout to take off from a complete stop...particularly up hill...if i come off the clutch REALLY slow...like out of my driveway or over a speed bump (and the car has to be completely stopped first) i feel this brbrbrbrbrbrb shake under the car from the backend and my shifter vibrates along with it....ONLY when i come off slowly.....if I come off the clutch at a normal speed or even launch (even really hard launch) nothiing no vibration at all

whats the deal:?

 

All the bolts under the car checked to make sure any are not loose?

 

Do you have a puck style clutch installed in the car?

 

I get the same thing to mine! When I let go of the clutch slowly the whole back of the car just shakes.. I was told it was my diff bushings... but I changed them and still doing it... but its not as bad... I think it could be other rear bushings... would love to hear more responses!

 

PPF might be cracked

 

If the PPF was cracked, wouldn't that mean it would happen every time we let the clutch go? Not just when we let go of the clutch slowly?

 

yes the whole back end wobbles like a bent wheel except really fast vibration and you hear **** going bam bam bam bam bam.....clutch is replaced stock one from 30k miles ago im sure its not this...y would my shifter wobble at the same time

 

Mine did it just like that. I thought it was diff mount, but when I took the PPF off to replace those, the PPf had a 3" crack on both sides. the best way to fix it is by replacing the PPF but you can get it welded back on. Just make sure it is a good welder though

 

i have the same problem....i checked my PPF recently and couldnt see any cracks, apart from a very small one that didnt look like it would cause a problem, but i didnt look in too much detail.

Itd be nice if i had a rolling road with a pit under it

 

did u check the motor mounts?

 

Until I developed a good feel for the clutch, a smooth take off was very difficult.

(ACT 6 puck with RB 9.5 lb flywheel)