Genuine Chevrolet Astro Universal Joint

Chevrolet Astro Universal Joint Parts Questions & Experts Answers

• Joint Kit,Front Axle Propeller Shaft Universal
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  Q: What is the function and maintenance of the driveshaft and Universal Joint on Chevrolet Astro?

  A: The driveshaft in the model is a tube running from the transmission to the rear end of the car and containing universal joints at both ends so that it can deliver power to the rear wheels regardless of the angles. It has a split yoke in the front, which engages into the extension housing of the transmission so that it can move back and forth as required during its use. An oil seal seals the compartment additionally and acts as a barrier to prevent the leakage of the fluid as well as the entry of contaminants into the transmission. Engine drive shaft does not require much maintenance as the joints are of type universal joints and are lubricated for life and are considered for replacement only if certain problems surface compelling the removal of the whole assembly from the car. The balance of the driveshaft must be preserved, and so it has to not be covered with undercoating or mud and has to be checked for damage as well as the proper attachment of the balancing weights each time it is to be removed. Problems associated with the driveshaft are generally heralded by noises or vibration feel while the car is in motion, which can be establish through a road test to pinpoint if the root cause is the driveshaft or another part. Forcing an engine speed during the test also navigates to the root of the problem, and if the noise, or the vibration, is reduced when the transmission is in different gears, the driveshaft may not be the problem. Regarding checking for worn universal joints the first symptom is a clunking noise heard while coasting, say from a stop sign and accelerating to proceed; the second is abnormal driveline noise while coasting in Neutral. Furthermore, if the vehicle is jacked and the driveshaft is rotated while examining the universal joints for end play is another method of determining the wear level.