Transfer Case and Front Axle Inspection

TRANSFER CASE (POWER TRANSFER UNIT) AND CARRIER ASSEMBLY-DIFFERENTIAL (REAR DRIVE MODULE) ALL-WHEEL DRIVE INSPECTION
Inspect the transfer case (power transfer unit) and carrier assembly-differential (rear drive module) every 12 months or at engine oil change intervals, check rear differential and transfer case and add lubricant when necessary. A fluid loss could indicate a problem; check and have it repaired, if needed. Check vent hoses at transfer case and differential for kinks and proper installation.