I was driving my car a little aggressive yesterday and I noticed that right at 3000RPMs in 3rd my shifter handle rattles a lot. This doesn't happen in 1st and 2nd. Also my car shifts fine into all gears there is some whine but other than that my tranny works fine. I also recently installed a shifter but it worked fine after I installed it and it started doing this recently. Any clue to what it can be?