Lift the carpet on the right side of the hump in the front. There will be a little panel that opens up. Beneath it you can get access to the fluid drive unit. Roll it around until the plug is accesible. If it has a plug it has fluid drive, if it doesn't the transmission has been changed at some time in the past. Use a 10w hydraulic fluid in the fluid drive. Napa has a tractor fluid, I used Valvoline tractor fluid. When I freshened mine it made a significant difference. It took almost 2 gallons to fill the fluid drive. Do not drop that plug. After the plug is out roll the fluid drive unit until the plug location is on the bottom, it will drain out the vent of the bell housing. After empty roll fluid drive back to the access hole and refill. It is a very slow process to fill.
Read the technical tips section on the fluid drive.
http://www40.addr.com/~merc583/mopar/framesets/techtipframeset.html