Hard to describe the issue but here we go... Whenever I'm driving,
especially around 45-50MPH and going steady or on cruise, the car
seems to shake/wobble/shimmy but not to side to side but front to
back. It almost feels like the transmission cannot figure out what
gear it wants to be in.. Speeding up or down doesn't make a
difference. I can only notice it while going at a steady speed,
slowing down or speeding up, it's not noticeable. It "wobbles" the car
and it's just super annoying. Any help would be greatly appreciated.

Just a couple notes:

1) Just did a transmission change with Honda fluid and no change.
2) Not a tire issue. Been balanced, rotated etc.
3) Checked all motor mounts. Replaced front engine. All others look
fine but I'm not 100% sure on the rear one (big honking one with valve
thing) it looks good, but I may be wrong.


Thanks!