Wondering what this might be. Car has vibratechnics dogbone mount and Powerflex Black Series upper mount support but that's it. Sometime gear changing isn't overly smooth but no crunching and it always goes in gear, second to that, every time you lift off the throttle and the engine rotates with lack of torque there's a clunk from the passenger side/gearbox top area that's annoying me. I can't see anything obvious going on. Any thoughts?