Transmission & Drivetrain

At Unitech Auto Repair & Smog, Inc., we provide comprehensive transmission and drivetrain services performed by ASE-certified specialists with extensive experience in both automatic and manual systems. Our expertise ensures reliable power delivery and smooth operation for all vehicles in Sacramento's diverse driving conditions.

Our Transmission & Drivetrain Services Include:

• Transmission Fluid Service: Sacramento's stop-and-go traffic and summer heat place extra stress on transmission fluid, accelerating breakdown and reducing service life. Our complete transmission fluid service goes beyond a simple drain and fill – we use specialized equipment to flush out 95% of old fluid and contaminants from torque converters, valve bodies, and cooler lines. We install manufacturer-recommended fluids with the precise additives required for your specific transmission type, whether conventional automatic, CVT, dual-clutch, or manual. This comprehensive service extends transmission life, improves shift quality, and prevents costly repairs.
• Clutch Replacement: Our ASE-certified technicians expertly replace clutch assemblies in manual transmission vehicles, restoring like-new pedal feel and engagement. We install complete kits including pressure plate, disc, release bearing, and pilot bearing, resurfacing or replacing the flywheel when necessary. Our precision adjustment ensures proper free play and engagement point, eliminating the common problems of difficult shifting and premature wear. This comprehensive approach is particularly valuable for Sacramento drivers who navigate both city traffic and highway commutes, where clutch durability and smooth operation are essential.
• CV Joints & Differential Service: CV joints and differentials are critical components that transfer power to your wheels while allowing for steering and suspension movement. We inspect boots for cracks and leaks, test joints for excessive play, and replace components before catastrophic failure occurs. Our differential services include fluid replacement with synthetic formulations specifically designed for Sacramento's temperature extremes, extending component life and reducing noise. We service all differential types including limited-slip, electronic, and torque-vectoring systems found in modern AWD vehicles.
• Axle & Driveshaft Repair: Damaged axles and driveshafts create dangerous driving conditions and can cause extensive secondary damage if not addressed promptly. Our ASE-certified technicians accurately diagnose vibrations, clunks, and power delivery issues, replacing axle assemblies, U-joints, and center bearings with precision-manufactured components. We perform computerized driveshaft balancing when necessary, eliminating vibrations that can damage transmissions and differentials. This attention to detail ensures smooth, quiet operation and reliable power delivery in all driving conditions throughout Sacramento and beyond.