Nissan 38164-0W000 Shaft Assy-Rear Axle

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The rear axle assembly is a hypoid, semi-floating type which allows the outer rear wheel to turn at a higher speed than the inner tire when the vehicle goes around a corner. On 4WD models, a fully independent front axle assembly is used with a differential and a pair of drive axles, each with an inner and outer constant velocity (CV) joint. An optional locking limited-slip rear axle is also available which allows for normal operation until one wheel loses traction. A limited-slip unit is similar in design to a conventional differential, except for the addition of a pair of multi-disc clutch packs which slow the rotation of the differential case when one wheel is on a firm surface and the other is on a slippery one. Often, a suspected "axle" problem lies elsewhere, so it is important to do a thorough check of other possible causes before assuming the axle is the problem. Overhauling the differential isn't cost effective for a do-it-yourselfer, so any further work should be left to a qualified repair shop.

After disconnecting and removing necessary components, lower the jack positioned under the differential, and then proceed to remove the rear axle assembly from underneath the vehicle.

Common symptoms of worn or damaged CV joints include a clicking noise that occurs during turns, a clunking sound when accelerating after coasting, and vibration at highway speeds.

After adjusting the snap-ring, install the free-running hub assembly, install the wheel and lug nuts, lower the vehicle, and tighten the lug nuts. Ensure the vehicle is safely lowered and the lug nuts are adequately tightened.

Before removing the driveshaft, mark the relationship of the driveshaft to the differential companion flange. Then, unbolt the driveshaft from the flange and support it with a piece of wire from the underbody.

If the bearing or bearing grease seal needs replacement, take the assembly to an automotive machine shop. They will remove the old bearing and seal and install new ones.