Axles are crucial components in any vehicle. They perform several important functions, including:

  1. Transmitting Power: Axles are integral to the drivetrain system. They transmit torque from the engine to the wheels, enabling the vehicle to move. In vehicles with engines, the transmission sends power through the driveshaft to the axle, which then turns the wheels.

  2. Supporting Weight: Axles bear the weight of the vehicle including the cargo and passengers. This is crucial for maintaining stability and handling.

  3. Absorbing Road Shocks: Through their connection with the suspension system, axles help absorb shocks from road surface irregularities, contributing to a smoother ride.

There are different types of axles depending on their function and the vehicle's design:

  • Drive Axles: These have differentials within them and are part of the drivetrain. They turn with the vehicle’s wheels.

  • Dead Axles: These do not turn and are used mainly to support the weight of the vehicle.

  • Stub Axles: These are used in the front wheels and are attached to the vehicle's steering system, allowing for pivoting when the steering wheel is turned.

Common Repairs for Car Axles

  1. Replacing CV Joints or Boots: For vehicles with front-wheel drive or all-wheel drive, constant velocity (CV) joints are used at the ends of the drive axles. These joints are protected by rubber or plastic boots. If these boots crack or tear, the joints can lose lubrication, collect debris, or even fail. Replacing damaged CV boots or joints is a common repair.

  2. Axle Shaft Replacement: If an axle shaft is bent or damaged (often due to a collision or excessive wear), it may need to be replaced. This is crucial as a compromised axle can affect the vehicle's handling and safety.

  3. Seal and Bearing Replacement: Axles have seals and bearings that ensure smooth rotation and prevent oil from leaking out of the differentials. Worn out seals and bearings can lead to leaks and other mechanical failures, requiring replacement.

  4. Differential Service: The differential, which allows the wheels to turn at different speeds (as needed, for instance, when turning corners), may need service. This includes changing the differential fluid, repairing gears, or replacing the entire differential if it's damaged.

  5. Welding and Straightening: In some cases, especially in heavy vehicles or in off-road conditions, axles may bend under extreme stress. Depending on the severity and the type of axle, they might be straightened or reinforced by welding.

Routine inspections and maintenance are essential to keep axles in good working order. This can prevent more costly repairs and extend the lifespan of the vehicle's drivetrain components. If you suspect any issues with your car's axles, it's best to have them inspected by a professional mechanic who can diagnose and fix the problem accurately.

Baber Auto Repair is an independent, family-owned repair shop with ASE Certified Technicians who live in the neighborhood. We are located in Roseville, MN and we service vehicles from all over the St. Paul/Minneapolis area. Our customers come from all over – including Falcon Heights, Arden Hills, Little Canada, and Vadnais Heights. If you feel like your vehicle’s Axles are something you need serviced or repaired by reliable mechanics, contact us today!