What is lubricating the driveshaft?
Along the drivetrain, whenever torque requires to travel from one place to another, a driveshaft is used. Some vehicles have two driveshafts under them, usually for four-wheel-drive applications. U-Joints are couplings that hold sections of driveshaft together and can withstand large quantity of torque. The U-joint and the slip both requires lubrication to work smoothly. This means lubricant requires to be applied to every point where the driveshaft meets another section of shaft or any other part of the car.
Bear in mind:
- While lubricating will help with scraping noise and minor vibration, it will not repair actually broken components.
- check the parts of the the driveshaft to make sure they do not require full replacement.
- Even small spots of excess wear are bad on component that withstands so much torque, no problem is too small to be addressed on the driveshaft.
How it’s done:
- The car is raised and supported on jack stands
- The slip joints and U-joints on all drive shafts are found
- The Zerk grease fittings on the slip joint and U-joints are located
- New grease is pumped into the grease fittings with a grease gun
- The car is lowered off of the jack stands
Check the manual of your car to see if the manufacturer has specific instructions on servicing and lubricating the driveshaft. If the manufacturer suggests it is time for a service or if the vehicle has signs of a malfunctioning driveshaft, then it should be done immediately. These component are under a lot of force and will usually fail when the vehicle is in motion. While under the car, inspect all of the connections along the drivetrain and keep an eye out for any parts that seems excessively worn. Bring a rag and wipe any mud or dust off to check for damage.
What are the common symptoms showing you need to lubricate the driveshaft?
- Clicking or grating sounds while the car is in gear
- Vibration in the car while it is running
How important is this service?
This service is very vital. Poor lubrication is one of the top reasons why driveshafts fail. When they do fail, driveshafts will fail while in motion and can take out more expensive components around them. These preventative maintenance steps are extremely important in order to avoid more costs down the road.