Removal:

1. Disconnect the cables from the battery. Remove the battery and tray.
2. Raise the vehicle and support it securely on jack-stands.
3. Drain the transmission fluid.
4. Disconnect the shift and clutch linkage from the transmission.
5. Detach the speedometer cable and electrical connectors from the transmission.
6. Remove the starter motor.
7. Remove the exhaust system components as necessary for clearance.
8. Support the engine. This can only be done from above with an engine hoist, or by placing a jack (with a block of wood as an insulator) under the engine oil pan. The engine must remain supported at all times while the transmission is out of the vehicle!
9. Remove any chassis or suspension components that will interfere with the transmission removal.
10. Disconnect the driveaxles from the transmission.
11. Support the transmission with a jack, then remove the bolts securing the transmission to the engine. On some models you will have to remove the bell housing cover to gain access to the lower transmission-to-engine bolts.
12. Remove the transmission mount nuts and bolts. Unbolt and remove the transmission mount bracket.
13. Make a final check that all wires and hoses have been disconnected from the transmission, then carefully pull the transmission and jack away from the engine.
14. Once the input shaft is clear, lower the transmission and remove it from under the vehicle.
15. With the transmission removed, the clutch components are now accessible and can be inspected. In most cases, new clutch components should be routinely installed when the transmission is removed.

Installation:

1. If removed, install the clutch components.
2. With the transmission secured to the jack with a chain, raise it into position behind the engine, then carefully slide it forward, engaging the input shaft with the clutch plate hub splines. Do not use excessive force to install the transmission - if the input shaft does not slide into place, readjust the angle of the transmission so it is level and/or turn the input shaft so the splines engage properly with the clutch plate hub.
3. Install the transmission-to-engine bolts. Tighten the bolts securely.
4. Install the transmission mount bracket and the mount nuts or bolts.
5. Install the chassis and suspension components which were removed. Tighten all nuts and bolts securely.
6. Remove the jacks supporting the transmission and engine.
7. Install the various items removed previously, eg. driveaxels and exhaust system components.
8. Make a final check that all wires, hoses, linkages and the speedometer cable have been connected and that the transmission has been filled with fluid to the proper level.
9. Install the battery and tray and connect the cables (negative cable last). Roadtest the vehicle for proper operation and check for leaks.
 

Manual Transmission Overhauling:

Overhauling a manual transmission is a difficult job for the do-it-yourselfer. It involves the disassembly and reassembly of many small parts. Numerous clearances must be precisely measured and, if necessary, changed with select fit spacers and snap-rings. As a result, if transmission problems arise, it can be removed and installed by a competent do-it-yourselfer, but overhaul should be left to a transmission repair shop. Rebuilt transmissions may be available - check the forums or places like Ebay etc. At any rate, the time and money involved in an overhaul is almost sure to exceed the cost of a rebuilt unit.
Nevertheless, it's not impossible for an inexperienced mechanic to rebuild a transmission if the special tools are available and the job is done in a deliberate step-by-step manner so nothing is overlooked. The tools necessary for an overhaul include internal and external snap-ring pliers, a bearing puller, a slide hammer, a set of pin punches, a dial indicator and possibly a hydraulic press.
In addition, a large sturdy workbench and a vice or transmission stand will be required. During disassembly of the transmission, make careful notes of how each piece comes off, where it fits in relation to other pieces and what holds it in place. Down the bottom of this page I have attached an exploded view of inside a 5-speed manual transmission to show where the parts go - but actually nothing how they are installed when you remove the parts will make it much easier to get the transmission back together. Before taking the transmission apart for repair, it will help if you have some idea what are of the transmission is malfunctioning. Certain problems can be tied to specific areas in the transmission, which can make component examination and replacement easier.