Feels like my engine and transmission are bucking in overdrive

[07Swift+]

Recently my car has been having an interesting issue where when I’m in overdrive, what feels like the whole engine/transmission is bucking. Car is at 99k km, I’m suspecting the rear motor mount is the issue. I’ll lift the car up when I get back to work and pry on the engine to see how much movement there is out of the mount

[sjcleckley1]

If the car is misfiring it will act the same from torque converter locking and unlocking had bad plugs and did the same on a 2008 automatic trans