Nissan 320B0-4S110 Manual Transmission

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Overhauling a manual transmission should be left to a transmission repair shop. It is possible for an inexperienced mechanic to rebuild it if special tools are available. These tools include internal and external snap-ring pliers, a bearing puller, a slide hammer, a set of pin punches, feeler gauges, a dial indicator and possibly a hydraulic press. Before taking the transmission apart, it helps to have an idea of what is malfunctioning and make careful notes.

Extract the torque converter-to-drive plate bolts by turning the crankshaft for access.

Remove the jacks supporting the transmission and the engine, install the torsion bars (if applicable), install the transfer case and shift linkage (if applicable), install various items removed earlier.

Overhauling a manual transmission is a difficult job that's better suited for transmission repair shops due to the complexity and potential costs involved.

Run the engine and check for any fluid leaks.

Install the cross member and attach it to the frame rails, install the transmission mount between the extension housing and the cross member, carefully lower the transmission extension housing onto the mount and the cross member.

Internal and external snap-ring pliers, a bearing puller, a slide hammer, a set of pin punches, feeler gauges, a dial indicator, and possibly a hydraulic press, a large workbench, a vise or transmission stand.

Install the cross member and attach it to the frame rails, install the transmission mount between the extension housing and the cross member, carefully lower the transmission extension housing onto the mount and the cross member.

Reattach the starter motor and torque converter inspection cover. Reconnect the transmission fluid cooler lines with new sealing washers and the transmission's electrical connectors. Reattach the shift cable, and on 4WD models, reinstall the transfer case if removed.