2000 Chevrolet Blazer - Transfer Case Fluid - Vehicle Specific

Transfer Case Fluid Leak Symptoms

Transfer case fluid is a specialized lubricant used in four-wheel drive (4WD) and all-wheel drive (AWD) vehicles. Also called a secondary transmission assembly, the transfer case distributes power to all four wheels as needed or selected for traction, off-roading, and more. Much like the engine or transmission utilize specific types of oil, the transfer case is filled with transfer case fluid to keep the gears properly lubricated and protect its internal components against friction and wear. This helps dissipate heat during operation, and allows power to be distributed from the transmission to the front and rear axles, providing the wheels with appropriate torque and improved traction in harsh driving conditions. Though it is possible to check your transfer case fluid level, it's not as easy as it is to check the levels in most engines or transmissions. Be sure to consult your owners manual for specifics about your car's configuration and how to properly check transfer case fluid level and condition. If you have difficulty shifting into or out of four-wheel drive, or if you hear grinding, humming, or growling noises underneath your vehicle during operation, you may need to change your transfer case fluid. Neglecting this problem can lead to transmission or transfer case damage, so it's best to change the fluid as soon as you notice a problem. Your owner's manual or service manual may also specify the service interval and fluid specifications to ensure the longest transfer case life. When you're ready to change or replace the fluid in your transfer case, O'Reilly Auto Parts carries the right types of transfer case fluid for most vehicles and the parts and tools required to complete any transfer case repair.