A manual transmission or gearbox takes the power generated by the engine and transmits it to the drive axle. Manual transmissions are known for their reliability, durability and great fuel mileage. Over time gears can begin to grind, shift forks can bend, and clutches can wear out. In most cases the only way to service a gearbox is to remove it from the vehicle.
Disconnect the ground cable from the negative battery terminal.
Remove the shift knob.
Remove the shifter trim plate and center console if necessary.
Raise the vehicle according to the instructions listed in the vehicle owner's manual and support with jack stands placed underneath the frame or axles.
Remove the speedometer cable.
Remove any electrical wires or harnesses, be sure to label each wire for reassembly.
Remove the rear driveshaft and front driveshaft if equipped.
Remove the transfer case if equipped.
Remove the shift levers from the side of the transmission if equipped.
Remove the bolts that secure the shifter to the transmission tail housing.
Remove the shifter from the transmission.
Remove the bolts that secure the transmission mount to the crossmember.
Remove the bolts that secure the crossmember to the frame.
Remove the crossmember.
Support the transmission with a dedicated transmission jack.
Remove the bolts that secure the transmission to the bell housing.
Using the transmission jack to support the weight of the transmission, slide the transmission rearward until the input shaft clears the bell housing.
Remove the transmission from the vehicle.
