The oil which is the inside of a box of changes, is a set of four wheels that protects the internal parts wear. It circulates through the transfer case and cools and lubricates all internal moving parts. Once the transfer case begins to fail, change the oil to protect the internal components should be. Most car manufacturers recommend changing oil transfer case between 25,000 and 30,000 miles (30,000 to 48,000 kilometers).
- Place yourself in the middle and at the bottom of your vehicle to locate the transfer case. In most vehicles, it is located behind the transmission that is located in the rear of the vehicle. The rear drive shaft is connected to the rear differential from one end and connected to the transfer case at the other end.
- Locate the drain plugs and filling the transfer case. The drain plug is always smaller in the filler cap, the latter is approximately half the distance of the front of the transfer case and the drain plug is located at the bottom of the transfer case the front side. The drain plug and fill plug can be either a cap head bolt 1/2 inch (13 mm) or square recessed hole 3/8 inch (9 mm). You can use a pipe wrench on the bolt head shots. Use the square end of the pawls sized to loosen and remove embedded plugs.
- Slide tray toward the fluid collection of the drain located in the bottom of the transfer case. With a ratchet wrench or suitable size, turn the drain plug clockwise to loosen it. Ends unscrewing the drain plug with your fingers. Wait until all the oil from the transfer case drain into the drain pan.
- Screw the drain plug at the bottom of the transfer case and tighten the cap of it down firmly with a tool of suitable size.
- Unscrew the filler cap. Most filler plugs are the same size as the drain plugs. Turn the filler cap clockwise to loosen the cap. Ends unscrewing the filler cap with your fingers.
- Connect the long plastic tube pump fluid hand. Slide the other end of the plastic hose into the fill hole.
- Pumps oil transfer case in the fill hole until oil comes out completely. Once the oil comes out of the filler, the transfer case will be full. Remove the plastic tube and screw the filler cap on the transfer case and tighten the filler cap. Slide the collecting tray underneath the vehicle.
Tips & Warnings
- The transfer case in older models used vehicle oil change, while the transfer case of vehicles of more recent models used ATF (automatic transmission fluid).
- Use safety glasses when changing the oil in the transfer case.