when going from reverse to 1st with the associated jump in the shaft. What is more noticeable is the change in drivetrain harmonics. I can hear a little more trans noise through the lower gears and I swear the exhaust note is more pronounced. That could be a result of one of the exhaust can rear most rubber hanger split so it's hanging on one. I'll take care of that too. I now I have one hanging around the garage somewhere....