TM 10-3930-669-34 2-12.  DRIVE AXLE TROUBLESHOOTING (CONT.). 3.  DRIVE AXLE NOISE GREATER DURING COAST THAN UNDER POWER. INITIAL SETUP Tools and Special Tools References Tool Kit, General Mechanic’s: Automotive TM 10-3930-669-10 (Item 1, Appendix E) Wrench, Torque (O to 600 Ib-ft [0-814 N.m]) Equipment Condition (Item 5, Appendix E) Drive axle removed (Para 10-2) KNOWN INFO Nothing. POSSIBLE PROBLEMS Pinion ring nut loose.  Ring gear and pinion assembly faulty. TEST OPTIONS Ring nut check. REASON FOR QUESTION If pinion ring is loose drive axle will be noisier during coasting than under power. 2-80

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