It may not display this or other websites correctly. You should upgrade or use an alternative browser. How does a transfer case work? Thread starter Chris Start date Oct 20, Chris Administrator.
Staff Member. Ride of the Month Winner. Four-wheelers are a diverse bunch. There are rockcrawlers, mud runners, trail hounds, and dune bashers. There are big-truck fans and small-SUV fans. Ford guys, Chevy guys, and Jeepers. Even a few Scout lovers. So we owe a debt of gratitude to that big hunk of metal slung under the cab. Or, if your T-case expertise only goes as far as the full-time box under your old Blazer, allow us to bring you up to speed on newer transfer case developments.
THE BASICS No matter how simple or complex your transfer case is, this is what it does: It splits the engine torque coming from the transmission and delivers it to output shafts that connect to driveshafts leading to the front and rear axles. Most transfer cases designed for off-road use are able to mechanically lock the front and rear driveshafts together, so each end of the vehicle gets an equal amount of engine torque.
Depending on the age and design of your transfer case, torque is delivered to the front output shaft either through a set of gears or via a chain. The power from both the engine and transmission is directed through the differential and out to the wheels. The transfer case is located between the transmission and front and rear differentials via the driveshafts, creating a two-wheel drive 2WD or four-wheel drive vehicle. On a four-wheel or all-wheel drive AWD vehicle, it directs power to two or four wheels.
When the transfer case engages the front shaft, which feeds power to the front wheels, the vehicle then becomes a four-wheel drive. All-wheel drive vehicles receive power through the transfer case at all times. Each vehicle has a different setup. Pick-up trucks have two-wheel and four-wheel drive options, some crossovers have an option of all-wheel or two-wheel driver, while some SUVs have an option of all-wheel drive. Performance vehicles also are available in 2-wheel or all-wheel drives.
Four-wheel and all-wheel drive options offer better traction and maneuverability for steep roads, mountainous terrain, and slick roads from inclement weather. If so, considering a vehicle with four-wheel or all-wheel drives may be right for you. Four-wheel drive and all-wheel drive vehicles are ideal for off-roading and the needed traction with adverse weather conditions. Transaxle oils, differential fluid, and gear oils should be changed between 30, — 60, miles by a certified technician.
Clean, fresh oil provides better protection of the differential and well-lubricated parts, as with any component on the vehicle, ensure the best performance. Transfer case fluid should be replaced every 30, miles to remove any debris or contaminants and to better lubricate components.
This is highly recommended for trucks that tow loads and utilize four-wheel drive frequently. Front and rear differential problem symptoms can vary and need to be inspected by a technician immediately.
Neglecting any maintenance service on your vehicle is unwise in any situation. Spent differential fluid, after time, becomes dirty and contaminated. Continuing to drive with unclean fluid is risky as it may result in undue wear on components leading to permanent damage. Drivers should take extreme caution if they are experiencing trouble with the transfer case and avoid rough or slippery terrains.
Regular maintenance on your vehicle ensures a longer life for your car and a better performance. Enter your email address and we'll email you a digital version of this coupon that you can present on your mobile device at your Sun Devil Auto Shop.
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