37 Years of Servicing Southern California Tel: (714) 630-4327

Services we provide

Expert Differential Repairs and Upgrades

  • Comprehensive Differential Care: From repairs to upgrades, and even ratio changes, we offer a full range of services to keep your differential in top shape.

  • Convenient Options: Choose between drive-in or bench service to suit your needs and schedule.

  • Performance Enhancement: Unlock your vehicle’s potential with our performance and competition differential development services.

  • Optimized for Off-Roading: Get the right traction with our 4×4 differential ratio changes, perfect for off-road enthusiasts.

  • Positraction & Limited Slip: For enhanced performance in racing and off-road, we off installation and upgrades to help distribute power to the rear wheels and helps them spin at the same speed.

Differential Service & Maintenance

“Strong and Durable Performance: Your Differential’s Best Buddy

Your car’s differential is a tough part that helps your car run smoothly. It can handle tough jobs and last a long time. But, like any machine, it needs care to stay in top shape.

Inside the differential, there’s special oil called gear oil. It cools down and keeps the parts moving smoothly. It’s like a superhero that protects the gears from getting too hot and worn out.

Over time, this oil can get thick and messy, and bits of gears can make it dirty. When this happens, the gears don’t work well, and it could cause bigger problems.

At UNITRAX Differentials. We take out the old, messy oil and put in fresh oil that the car maker recommends. It’s like giving your differential a fresh start to stay strong and happy.

Expert Differential Repairs and Upgrades

Hey there! Got a differential problem? Don’t worry, we’ve got your back! Our team of expert mechanics specializes in differential repair, so whether it’s a leak, noise, or any other issue, we’ve got the skills and know-how to get your car back on the road in no time. Trust us, we’ll have that differential purring like a kitten again!

Expert Differential Repair and Upgrades

Hey there! Welcome to Drivetrain Solutions, the one-stop-shop for all your drivetrain needs. Whether you need a repair, maintenance, or an upgrade, our team of highly skilled technicians have got you covered. We’ll have your vehicle running smoothly and efficiently in no time, so you can hit the road with confidence.

Enhance Your Off-Road Experience with 4WD Upgrades!

Get ready to take your off-roading adventures to the next level with our 4WD upgrades! Whether you’re a seasoned enthusiast or just getting started, our team of experts will hook you up with all the latest gear to tackle any terrain. From lift kits to heavy-duty tires, we’ve got everything you need to transform your ride into the ultimate off-road machine. So gear up, get muddy, and let the adrenaline rush begin!


Explore Our Expert Classic and Vintage Car Differential Repair and Rebuilding Services. At our dedicated facility, we specialize in meticulously restoring and rebuilding classic and vintage car differentials. To make the process as hassle-free as possible, if you are not local or close to our facility, you can securely package and ship your differential to us, and we’ll handle the rest. Before sending it our way, feel free to contact us for an estimated cost and shipping instructions. Rest assured, all our parts and services come with a solid guarantee for your peace of mind.

Additionally, we maintain an extensive inventory of pre-rebuilt differentials. It’s worth checking with us to see if we already have the perfect match for your needs. Call us today at 714-530-4327 to learn more.