Hi i have a 2012 wrx hatchback
Roughly 9k miles
Recently even when the car is warm shifting into 1st 2nd and sometimes even 3rd OR driving up my bumpy gravel driveway/bumps on the road causes the rear of the car to produce a squeaking sound and a bit of jerk from the car when gas is applied. The symptoms occur BOTH already in gear and shifting into gear. When shifting it produces the issue on flat roads and when in gear on bumpy.
Car is stock and all subaru parts
Aka subaru short throw shifter installed by dealer