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IDENTIFICATION A circular ID tag is attached to the rear case of each transfer case (Fig. 1). The ID tag provides the The transfer case serial number also represents the date of build. OPERATION The input gear is splined to the transmission out- put shaft. The input gear drives the mainshaft DIAGNOSIS AND TESTING - TRANSFER CASE - NV231 DIAGNOSIS CHART Condition Possible Cause Correction Transfer case difficult to shift or will 1) Vehicle speed to great to permit 1) Slow vehicle and shift into 2) If vehicle was operated for an 2) Stop vehicle and shift transfer 3) Transfer case shift linkage 3) Repair or replace linkage as 4) Insufficient or incorrect lubricant. 4) Drain and refill transfer case with 5) Internal transfer case 5) Repair or replace components as Transfer case noisy in all drive 1) Insufficient or incorrect lubricant. 1) Drain and refill transfer case with Fig. 1 Fill/Drain Plug And I.D. Tag Locations - Typical 1 - I.D. TAG 21 - 166 TRANSFER CASE - NV231 TJ TRANSFER CASE - NV231 (Continued) |