The transmission in the 1965 Mustang includes a number of disks, gears and seals. As with all transmissions, these components eventually wear out and require replacement. Although some adjustments are possible without removing the transmission, removal is necessary to rebuild the unit. If a professional will rebuild the transmission for you, you can save significantly if you can remove the transmission before you take it to the shop.
Raise the car with a jack and support it on jack stands.
Remove the two nuts that secure the back of the driveshaft to the front of the differential with an open-end wrench, and then pull the front of the driveshaft out of the back of the transmission.
Remove the bolts that secure the converter cover to the bottom of the front of the transmission with a socket wrench.
Pull the vacuum line off of the extension housing located at the back of the transmission.
Remove the two nuts that secure the crossmember to the center of the bottom of the transmission with a socket wrench.
Remove the speedometer cable from the driver's side of the transmission with an open-end wrench.
Open the hood and remove the single bolt that secures the top of the transmission's dipstick tube to the passenger's side of the engine block with a socket wrench, and then pull the dipstick tube out of the transmission.
Disconnect the two metal cooler lines from the side of the transmission with an open-end wrench.
Remove the two bolts that secure the starter motor to the passenger's side of the bellhousing with a socket wrench and pull the starter out of the bellhousing.
Remove the four nuts that secure the front of the torque converter to the back of the flywheel with a socket wrench.
Remove the five bolts that secure the bellhousing to the back of the engine block with a socket wrench.
Support the transmission with a jack.
Remove the two bolts that secure the crossmember to the frame with a socket wrench.
Lower the transmission with the jack and remove it from the car.
