How do you adjust band on 91 festiva auto trans?

To adjust the band on a 1991 Ford Festiva with an automatic transmission, locate the band adjustment screw on the transmission case. Use a socket wrench to loosen the lock nut, then turn the adjustment screw to set the desired tension. Typically, you would turn the screw to the specified torque or number of turns as per the service manual. Finally, re-tighten the lock nut and ensure everything is secure before testing the transmission's performance.