• Ralph’s Transmission & Auto Repair Highway
    A Commitment to Quality
    Since 1969
  • Ralph’s Transmission & Auto Repair Kinds in car
    A Commitment to Quality
    Since 1969
  • Ralph’s Transmission & Auto Repair
    A Commitment to Quality
    Since 1969
Schedule an Appointment
We Offer AN Exceptional3 Year • 100,000 Mile Warranty
Zach T. “I took my truck into the Ralph's and they fixed the huge problem I was dealing with for my transmission. I thought I was going to be out a lot of money but I wasn't. This is the best place in Modesto for a Transmission repair or replacement.”
Janice W. Ralph"s Transmission did me right got me back on the road after my son burned up the transmission..well you know kids! I am very happy with the service and the price :)

Services Offered

  • Transmissions
  • Transmission Rebuilding
  • Transmission Overhaul
  • Transmission Replacement
  • Transmission Service
  • Transmission Repairs
  • Transfer Cases
  • Torque Converters
  • Differentials
  • Transmission Diagnostics
  • Drive Axles
  • Driveline
  • U-Joints
  • Clutches
  • Drive Train
  • Flushes
  • Speedometers
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Our Warranty

Our professional staff of technicians and 16 service lifts enables us to get you and your car up and running as quickly as possible. However, because it is impossible to judge the exact nature of the problem from a phone call, we can only provide estimates after carefully examining your vehicle. We welcome your questions and will be delighted to make an accurate diagnosis.

  • Transmission & DRIVETRAIN MAINTENANCE
  • Transmission & DRIVETRAIN REPAIR
  • Transmission & DRIVETRAIN OVERHAULS

We know that having a transmission rebuilt isn’t a pleasant experience. We want you to feel confident that you are getting the best work for the best price. We offer up to a 3 years, 100,000 miles LOCAL IN-HOUSE on rebuilt transmissions. Plus, we honor Automatic Transmission Rebuilders Association (ATRA) warranties on all makes and models nationwide. Our warranty policy demonstrates our confidence in the parts we use and the labor we perform. We will do what it takes to ensure your satisfaction and continued trust in our service.

Latest From Our Blog

Chevy Silverado Owner Gets Clutch Repaired at Ralph's Transmission

Kathy owns a 1991 Chevrolet Silverado with over 200,000 miles on it. Of course, she loves her truck and wants to keep it running well. Recently, she b... read more

Mario Jauregui of Ralph's Transmission Gives Speech at Annual ATRA Powertrain Expo

Team members from Ralph's Transmission recently attended the annual ATRA Powertrain Expo hosted by the Automatic Transmission Rebuilders Associati... read more

Customer Gets the Service and Expertise He Was Looking for at Ralph's Transmission

Taylor was having problems with his 2005 Infiniti G35. His check engine light was on, the car was not accelerating normally, and it was leaking s... read more

To Our Blog

Modesto Transmission Repair | Mario and Maria

A Local Heritage:

Since 1969, Ralph’s Transmission has been a Central Valley tradition, well known for providing high standards of transmission service and repair. Today, owners Mario & Maria Jauregui are continuing this tradition while pushing the shop forward with innovative ideas and a strong belief in personalized customer service, which stems from their many years of expertise in the transmission industry. Ralph’s Transmission will always be a family-oriented business, so Mario & Maria are proud to be an integral part of this local heritage.

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