What Causes Excessive Clearance Between the Driveshaft and Rear Axle?

[AvaLynn]

This issue is caused by excessive clearance between the driving and driven bevel gears inside the main reducer. To resolve the problem, remove the main reducer located in the middle of the rear axle housing and adjust the clearance between the driving and driven bevel gears to 0.2-0.4 mm. Below is a detailed introduction to the driveshaft: 1. Introduction: The driveshaft is a high-speed rotating body with minimal support, making its dynamic balance crucial. For front-engine, rear-wheel-drive vehicles, it transmits the rotation from the transmission to the main reducer. It may consist of multiple sections connected by universal joints. 2. Composition: The driveshaft is composed of an axle tube, a telescopic sleeve, and universal joints. The telescopic sleeve automatically adjusts for changes in distance between the transmission and the drive axle. The universal joints ensure changes in the angle between the transmission output shaft and the drive axle input shaft while maintaining constant angular velocity transmission between the two shafts.

[MartinRose]

I've seen it many times at the repair shop. There are several main reasons for excessive clearance between the driveshaft and the rear axle. First, wear on the driveshaft's universal joint can cause looseness, a common issue in older cars where metal fatigue and deformation occur over time. Second, damaged or loose connection bushings in the rear axle, where rubber components deform after aging, naturally increase the clearance. Third, loose mounting bolts that weren't tightened in time after the vehicle experienced bumps. You'll hear abnormal noises from the chassis and feel shaking during acceleration, affecting transmission efficiency. There are safety risks too, like the danger of sudden detachment at high speeds. I recommend checking the chassis bolts during every maintenance service and replacing the bushings if necessary. Don't underestimate this issue, as it can lead to increased fuel consumption and potentially more failures.

[LeilaniFitz]

Workshop experience tells me that excessive clearance between the driveshaft and rear axle usually stems from component wear. Loose universal joint bearings or ruptured bushings are the most common culprits, with knocking sounds alerting you during operation. Vibration detection method: Feel the wobble degree during idling. Exceeding standards will cause overloading on the rear axle, shortening its lifespan. The repair isn't difficult - first measure the standard clearance value, then replace parts if exceeding limits. I emphasize regular maintenance and avoiding rough roads to minimize impacts. Timely handling saves money and ensures peace of mind.

[StFernando]

As a hands-on car owner, I've researched that increased play in the driveshaft and rear axle can be caused by worn bushings or universal joint issues. Symptoms include acceleration noises. For DIY inspection, try manually shaking the driveshaft to check for looseness. Solutions typically involve tightening bolts or replacing components. Don't delay repairs, as this can lead to power transmission issues and affect driving performance.

[LeAdelyn]

While driving, I noticed noise from the chassis, and a friend suggested it might be due to excessive clearance. Issues with the driveshaft and rear axle often stem from worn bushings. This can be uncomfortable and may even lead to instability. The mechanic recommended checking if the universal joints are tight. Paying attention to road feedback during daily driving and being vigilant during maintenance can prevent further deterioration.

[DiLincoln]

Just started studying car maintenance and learned that the main causes of increased clearance in the drive shaft and rear axle are worn connecting bushings or loose universal joints. In practice, it's necessary to measure the gap; if it's outside the standard range, parts need to be replaced. Symptoms include abnormal noises and vibrations, which harm transmission efficiency. I must say timely inspection and repair are crucial to avoid further damage.