Rear Axle 18 Assemble companion flange, washer and new pinion nut. Tighten pinion nut using torque wrench by holding companion flange with help of special tool Tighten nut to specified torque or until all end play is removed. Continue to tighten in small increments until specified rotating torque is achieved. Note: Excessive care must be taken during bearing preload torque adjustment. Do not over tighten, loosen and then retighten nut. Do not exceed specified bearing preload torque. If preload torque is exceeded, a new collapsible spacer must be installed. Refer procedure to remove pinion nut, companion flange, pinion outer bearing cup & cone to replace collapsible spacer. Reassemble all removed parts and recheck for rotating torque of pinion again. It should read between 0.18 to 0.26 Mkg with new bearings. Note: If only oil seal needs to be changed, measure rotating torque of pinion with the help special tool. In this case use new collapsible spacer and keep same rotational torque of pinion as before. 3.7 CASE REASSEMBLY Note: Always replace gears as a complete set. Do not mix new gears with old gears, as this may cause uneven wear and shorter gear life. 1. Place differential case in vise as shown. Apply grease to new side gear thrust washers and hubs of side gears. Assemble both side gears. Apply grease to new pinion mate spherical washers, and the pinion mate gears. Assemble pinion mate gears. 2. Use a drift to line holes of the gears up with case. Assemble shaft, drive on shaft to remove drift. Be sure vertical lock pin hole is lined up with that of the case, and that pinion mate washers are in place and lined up with gear and case.
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