gas
no
No ( motorcraft . com shows the 1995 Grand Marquis transmission as an AOD - E and the 1997 Grand Marquis transmission as a 4R70W and different part numbers )
The sign i had before my tranny was toast was the whole care vibrates when shifting between 35 and 45 miles an hour.
Transmission
Your 1996 Mercury Grand Marquis may need a new transmission or something as simple as transmission fluid.
I was not aware that the Grand Marquis came in a manual Transmission! If it was an Automatic Transmission I would say take it to a Transmission Shop and have it looked at.
take it to a shop
on the transmission
Physically, yes. It would be best to consult an interchange reference to know if the wiring and programming are compatible.
Rear of engine near firewall.
Remove the transmission and take it off.
A crack near or on the thermostat housing can cause a coolant leak in a 1996 Grand Marquis. The thermostat housing is located near the manifold on this vehicle.