Specializing in transmission repair and rebuilds. Manual and automatic, foreign and domestic automobile transmission services. Based in Modesto, this leading transmission shop has been serving Central Valley customers since 1969. Now under the ownership of Mario & Maria Jauregui, who are building on the exceptional reputation of Ralph's Transmission with a continued commitment to quality service. Mario & Maria Jauregui have many years of expertise in the transmission industry, having owned several successful shops throughout the Central Valley. They bring an attention to detail and commitment to quality that sparks to the success at Ralph's Transmission. They are proud to keep Ralph's a family-owned business serving people throughout the Central Valley community that they know and love.