Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Axle Shafts - Front: Description
The inboard end of each axle shaft is connected to the transmission via a constant velocity joint which is flexible in the axial directions while the outboard end is connected via a Bell Joint (BJ) to the wheel hub which is supported by a taper roller bearing located inside the axle housing. The BJ features a large operating angle. Both the constant velocity joints ensure smooth, regular rotation of the drive wheels with minimum vibration. The bearing is preloaded, non-adjustable tapered roller unit bearing. Each hub is fitted in the axle housing via the tapered roller bearing. The BJ's spindle is splined to the hub and is secured with an axle nut clinched to it. The disc rotor is an external mounting type. It is secured to the disc wheel using hub bolts to facilitate maintenance of the disc rotor.
An AARi (Angular Adjusted Roller-improved) joint may be used on the transmission side of each front drive shaft. The AARi can be disassembled for maintenance. The AARi provides a maximum operating angle of 23° and can move in axial directions.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.