1441 Bush St., San Francisco, CA 94109 | 415-771-1933
Undercar Maintenance, Repair, & Replacement Services
The components beneath your vehicle directly affect its handling, comfort, and overall performance. Gage Automotive in San Francisco provides undercar services that include the inspection and repair of essential components, such as the chassis, differential, driveline, shocks, and struts, helping identify wear and damage before they develop into more serious issues.
Whether your vehicle needs suspension or drivetrain service, our experienced technicians provide the necessary repairs to help keep it operating safely and reliably.

Chassis Repair
A strong, properly maintained chassis provides the structural foundation your vehicle relies on for stability and safe operation. Corrosion, impact damage, or excessive wear can affect alignment, handling, and the integrity of supporting components. Our technicians inspect the chassis for damage and perform appropriate repairs to help maintain its strength and reliability.
Differential Flush
Differential fluid lubricates the gears and internal components, helping reduce friction and heat during operation. Over time, the fluid can become contaminated or lose its effectiveness, increasing wear and potentially causing damage. A differential flush removes the old fluid and replaces it with fresh fluid to protect the components and maintain smooth drivetrain performance.
Differential Repair & Replacement
Power is distributed to the drive wheels through the differential, which also allows the wheels to rotate at different speeds when cornering. Whining or grinding noises, vibrations, fluid leaks, or changes in handling can point to a differential problem. We diagnose these issues and provide differential repairs or replacement when necessary to restore smooth drivetrain operation.
Driveshaft Repair & Replacement
Connecting the transmission or transfer case to the drive axle, the driveshaft plays a critical role in transferring power to the wheels. Worn joints, damaged components, or an imbalanced driveshaft can result in vibrations, clunking noises, or difficulty transferring power. Our technicians can inspect the driveshaft and complete repairs or replacement as needed.
Shock Absorber Repair & Replacement
​Maintaining effective shock absorbers helps control suspension movement, improve ride comfort, and keep the tires firmly connected to the road. Excessive bouncing, uneven tire wear, nose-diving during braking, or unstable handling can indicate worn shocks. We inspect the suspension system and replace damaged or worn shock absorbers.
Strut Repair & Replacement
Struts help support the vehicle while controlling movement and maintaining consistent tire contact with the road. Worn struts can contribute to excessive bouncing, uneven tire wear, increased body movement, or a noticeable dip when braking. Our technicians can assess the condition of your struts and replace worn or damaged components to improve stability and handline.
Frequently Asked Questions

