Podcast
Questions and Answers
What is the recommended frequency for inspecting U-joints on a vehicle?
What is the recommended frequency for inspecting U-joints on a vehicle?
What can happen if a dented or creased driveshaft is not replaced?
What can happen if a dented or creased driveshaft is not replaced?
What can cause severe vibrations in a vehicle?
What can cause severe vibrations in a vehicle?
What is the standard repair procedure in Europe and Japan for CV joint failure?
What is the standard repair procedure in Europe and Japan for CV joint failure?
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What should be done to eliminate driveline "clunk" noise in rear-wheel-drive vehicles?
What should be done to eliminate driveline "clunk" noise in rear-wheel-drive vehicles?
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What type of grease is preferred for its high temperature resistance?
What type of grease is preferred for its high temperature resistance?
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What should be done before servicing a CV joint or shaft assembly?
What should be done before servicing a CV joint or shaft assembly?
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What can cause noise while driving and require replacement?
What can cause noise while driving and require replacement?
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Can U-joints be repaired if worn or defective?
Can U-joints be repaired if worn or defective?
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What can cause driveline "clunk" in rear-wheel-drive vehicles?
What can cause driveline "clunk" in rear-wheel-drive vehicles?
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What may be required to remove the splined end of the axle from the hub bearing?
What may be required to remove the splined end of the axle from the hub bearing?
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Study Notes
- The driveshaft of a RWD vehicle rotates faster than the wheels due to gear reduction in the differential.
- U-joints and driveshaft should be inspected if there is vibration, clicking, or clunking sounds.
- Dented or creased driveshaft can collapse and cause severe damage or accidents.
- U-joints should be inspected every time the vehicle is lubricated or four times a year.
- U-joints cannot be repaired and must be replaced if worn or defective.
- Unequal or incorrect U-joint angles can cause severe vibrations.
- Working angles of the two U-joints on a driveshaft should be within 1/2 degree of each other.
- Shims can be added to bring the two angles closer together.
- CV joint wear or failure can cause noise while driving.
- Replacement of the entire drive assembly is the standard repair procedure in Europe and Japan for CV joint failure.
- CV joint wear can cause noise and requires replacement.
- Drive axle shaft assembly can be replaced and sent for remanufacturing.
- Service procedures and practices vary depending on location and parts availability.
- Hub nut must be removed before servicing a CV joint or shaft assembly.
- Driveline "clunk" in rear-wheel-drive vehicles can be caused by excessive clearance in the differential or spline bind.
- Vehicle manufacturers recommend removing the driveshaft, cleaning the splines, removing burrs, and applying high-temperature grease to eliminate driveline "clunk" noise.
- Synthetic chassis grease is preferred for its high temperature resistance.
- The dampener weight on some drive axle shafts is not a balance weight and need not be transferred to the replacement shaft assembly.
- Manufacturers warn against using an air impact wrench to remove the hub nut.
- Special tools may be required to remove the splined end of the axle from the hub bearing.
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Description
Do you know the ins and outs of your vehicle's driveshaft and U-joints? Test your knowledge with our quiz and learn about the importance of inspecting and maintaining these crucial components. From gear reduction to CV joint wear, we cover a wide range of topics to ensure you have a comprehensive understanding of your vehicle's driveline system. Don't risk costly damage or accidents - take our quiz and become a driveshaft and U-joint expert!