So last night I was driving down the expressway and was in 5th gear coming up to some slower traffic and I take my foot off the gas to decelerate and between 3500 and 3250rpms I got a pretty bad vibration through the stick. I could also feel it underneath the car. I tried it again in a different gear this morning(in 3rd) and it did it as well but at a higher rpm. I cant imagine this is normal. Has anyone else felt this.