You can easily do it yourself. Just undo the drain bolt on the bottom of the transmission, let the fluid drain out, screw the bolt back in, reach a little further up and undo the fill bolt, drop a small funnel with plastic tube attached down from above, and pour 3 1/2 quarts of MTF in, or until it starts to overflow. I would also recommend someone down underneath, holding the tube in, and to tell you when it starts to overflow. Shouldn't be more than 10 bucks to do it yourself!