In park, car wants to creep forward if you bring up the RPM's. Car struggles to move backwards in reverse, like it's fighting to go backwards. You can actually feel the suspension load up before it rolls. Forward gears seem to work fine. This is a manual valve body, no trans brake. Car hasn't done much but roll around the garage and driveway a bit. Does this just sound like the shifter cable is out of adjustment? (TH400 for reference)