_Tools Needed:_
* New gearbox oil (Check owner's manual for the correct type and quantity)
* Oil drain pan
* Funnel
* Wrench
* Rags
_Procedure:_
1. Park the vehicle on a level surface and apply the parking brake.
2. Start the engine and let it run for a few minutes to warm up the gearbox oil.
3. Turn off the engine and crawl underneath the vehicle. Locate the gearbox oil drain plug, which is usually located on the bottom of the gearbox.
4. Place the oil drain pan under the drain plug and loosen it using a wrench. Allow all of the oil to drain out into the pan.
5. Once all of the oil has drained out, replace the drain plug and tighten it securely.
6. Locate the gearbox oil fill plug, which is usually located on the top of the gearbox.
7. Remove the fill plug and insert a funnel into the hole.
8. Add the appropriate amount of new gearbox oil, as specified in the owner's manual.
9. Replace the fill plug and tighten it securely.
10. Check the oil level using the dipstick. The oil level should be between the "full" and "add" marks on the dipstick.
Note: It is important to use the correct type of gearbox oil specified in the owner's manual. Using the wrong type of oil can damage the gearbox.
