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DLN-194 < UNIT DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: R180A] FRONT FINAL DRIVE ASSEMBLY INSPECTION AND ADJUSTMENT • Drain the differential gear oil before inspection and adjustment. Refer to . • Remove and install the carrier cover as necessary for inspection and adjustment. Refer to . Total Preload Torque 1. Install the differential side shaft if necessary. Refer to DLN-189, "Removal and Installation" . CAUTION: The differential side shaft must be installed in order to measure total preload torque. 2. Rotate the drive pinion back and forth 2 to 3 times to check for unusual noise and rotation malfunction. NOTE: Total preload torque = Drive pinion bearing preload torque + Side bearing preload torque • If the measured value is out of the specification, check and adjust each part. Adjust the drive pinion bearing preload torque first, then adjust the side bearing preload torque. CAUTION: Select a side bearing adjusting washer for right and left individually. Drive Gear Runout 1. Fit a dial indicator to the drive gear back face. • If the runout is outside of the limit, check the condition of the drive gear assembly. Foreign material may be caught between the drive gear and differential case, or the differential case or drive gear may be deformed. CAUTION: Replace drive gear and drive pinion as a set. 28. Housing spacer 29. Side bearing cap 30. Filler plug 31. Carrier cover A. Seal lip B. Screw holes C. Refer to "INSTALLATION" Tool number : ST3127S000 (J-25765-A) Total preload torque: Refer to DLN-193, "Disassembly and Assembly" PDIA0697E If the total preload torque is greater than specification On drive pinion bearings: Replace the collapsible spacer. Use thinner side bearing adjusting washers by the same DLN-212, "Inspection and Adjust- If the total preload torque is less than specification On drive pinion bearings: Tighten the drive pinion lock nut. Use thicker side bearing adjusting washers by the same DLN-212, "Inspection and Adjust- Runout limit: Refer to SPD886 |