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Condition Possible Cause Correction Lubricant leaking from transfer case 1) Transfer case overfilled. 1) Drain lubricant to the correct 2) Transfer case vent closed or 2) Clean or replace vent as 3) Transfer case seals damaged or 3) Replace suspect seal. Abnormal tire wear. 1) Extended operation in 4HI mode 1) Operate vehicle in AWD mode on REMOVAL 1. Shift transfer case into AWD. 2. Raise vehicle. 3. Drain transfer case lubricant. 4. Mark front and rear propeller shafts for alignment reference. 5. Support transmission (1) with jack stand. 6. Remove the transfer case skid plate, if equipped. 7. Disconnect front and rear propeller shafts at trans- fer case. 8. Disconnect transfer case shift motor and mode sensor wire connectors (3). 9. Disconnect transfer case vent hose. 10. Support transfer case (2) with transmission jack. 11. Secure transfer case (2) to jack with chains. 12. Remove nuts attaching transfer case to transmission. 13. Pull transfer case and jack rearward to disengage transfer case. 14. Remove transfer case (2) from under vehicle. DISASSEMBLY Position transfer case on shallow drain pan. Remove HB TRANSFER CASE - NV144 - SERVICE INFORMATION 21 - 801 |