the letter d
What would cause the 1995 Nissan Pathfinder not to go in forward or reverse?
Shift linkages not put in the correct spots.
Most likely your transmission needs replaced.
The tranny is broke.
Having it on "PARKING"
If no forward or slipping forward suspect problem in the forward clutch and circuit. Reverse does not use the same applied components
That would be a dynamic equilibrium, where the rates of the forward and reverse reactions are equal, resulting in no net change in the concentrations of reactants and products over time.
Check transmission Fluids.
Tranny is going out
Weight of the vehicle
The transmission is broken. Take it to a shop.
Inspect your brake pads. I would suspect they are worn out.