Nissan 31020-4EX17 Automatic Transmission Assembly

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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.

Confirm the torque converter's engagement in the pump. If detached, lubricate the converter rear hub and install it onto the front input shaft.

Disconnect the cable from the negative terminal of the battery, remove the Crankshaft Position sensor, shift lever and transfer case shift lever (if applicable), raise the vehicle, remove the skid plate, disconnect the electrical connector from the back-up light switch, neutral position switch and vehicle speed sensor, drain the transmission and transfer case lubricant (if applicable), remove the driveshaft(s), exhaust system components, starter motor, clutch release cylinder, torsion bars (if applicable), support the engine and transmission with a jack, remove the bolts attaching the transmission to the engine and the engine-to-transmission gussets, insert a small amount of multi-purpose grease into the pilot bushing in the crankshaft, lubricate the inner surface of the bushing, apply a light film of grease on the input shaft splines, the area on the front cover where the release bearing rides and the release lever/bearing contact points, install the clutch components (if removed), clean the bell housing-to-engine block mating surfaces, apply a 1/8-inch bead of RTV sealant to the bell housing mating surface, raise the transmission into position behind the engine and then carefully slide it forward, engaging the input shaft with the clutch plate hub, install the transmission-to-engine bolts in their proper locations and tighten them to the torque, raise the transmission into place, 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, 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 the various items removed previously, plug in the electrical connector for the Vehicle Speed Sensor, the back-up light switch and the Neutral position switch, connect any other wiring attached to the transmission or the transfer case, remove the jackstands and lower the vehicle, install the shift lever(s), fill the transmission with the specified lubricant to the proper level (and transfer case if applicable), connect the cable to the negative terminal of the battery and road test the vehicle for proper operation and check for leakage.