Should the front axle rubber of the Sylphy be replaced with a rubber sleeve or the entire assembly?

[MalachiFitz]

The front axle rubber of the Sylphy needs to be replaced with the entire assembly because the front axle rubber sleeve and the front axle are integrated. The front axle is connected to the steering system via the steering knuckle, transmitting the steering force from the steering gear to the wheels to achieve vehicle steering. The components of the front axle are as follows: 1. Front axle: As the main component, the front axle is generally made of medium-carbon steel through die forging and heat treatment. Its cross-section is I-shaped or, to improve torsional strength, has a thickened section near each end shaped like a fist, with a through-hole where the kingpin is inserted. The middle part is bent downward into a concave shape to lower the engine position, thereby reducing the vehicle's center of gravity. 2. Steering knuckle: This is the hinge for wheel steering, shaped like a fork. The upper and lower forks have coaxial holes for installing the kingpin, and the steering knuckle spindle is used to mount the wheel. The ears on the steering knuckle's pin holes are connected to the fist-shaped parts at both ends of the front axle via the kingpin, allowing the front wheels to pivot around the kingpin for steering. 3. Kingpin: This connects the front axle and the steering knuckle, enabling the steering knuckle to swing around the kingpin for wheel steering. The middle of the kingpin has a groove; during installation, the kingpin fixing bolt aligns with this groove to secure the kingpin in the fist-shaped hole of the front axle. 4. Wheel hub: The wheel hub is supported on the spindle at the outer end of the steering knuckle via two tapered roller bearings. The bearing tightness can be adjusted with an adjustment nut (located at the outer end of the bearing). The outer end of the hub is covered with a pressed metal cap, and the inner end is equipped with an oil seal. The brake backing plate and dust cover are both fixed to the steering knuckle.

[LaArabella]

I used to drive a Nissan Sylphy and also encountered issues with the front axle bushings. After the bushings aged, the car would make strange noises, and the steering wheel would slightly shake, which was quite annoying. I took it to a repair shop for inspection, and the mechanic said that if it was just a cracked or loose bushing, simply replacing the bushing would suffice, costing around 200-400 RMB, which is cheaper than replacing the entire component. However, if the front control arm itself was deformed or severely worn, the entire assembly would need to be replaced, costing over 1,000 RMB. For my Sylphy, just replacing the bushings solved the problem, and it still runs smoothly now. I recommend first having a professional shop inspect the chassis with a lift to determine the exact damage before blindly replacing the entire assembly. This approach saves money, is more eco-friendly, and avoids unnecessary hassle.

[Stacey]

From my perspective, the rubber bushings on the Sylphy's front axle are essentially vibration and noise dampers. If they're damaged, the replacement method depends on the design and wear level. If the bushings can be pressed in and out independently, replacing just the bushings is cost-effective, typically costing 100-300 RMB. However, if they're integrated components or the front axle assembly is rusted/deformed, replacing the entire assembly is safer. Most Sylphy bushings can be replaced individually, but professional tools and skills are required - DIY attempts often cause issues. Addressing it early also protects tire wear and extends lifespan. Don't wait until abnormal noises worsen and affect driving performance.

[AndrewFitz]

Cost is key when replacing the front axle bushings on a Sylphy. Replacing just the bushings is cheaper, with materials and labor costing only a few hundred, but it takes more time. Replacing the entire assembly is more convenient but expensive, potentially costing over a thousand. I recommend those on a tight budget opt for just replacing the bushings—if the bushings are loose, that may suffice. If the budget allows or the car is older, replacing the entire assembly is a more permanent solution, reducing the risk of needing a second repair.