We have been in the automotive industry since 1949 and are family owned and operated near beautiful downtown Oklahoma City. As of 2004, we were QS9000 certified and are currently working on our ISO9001-2002 certification.  We are members of the Central Oklahoma Manufacturers Association and the Oklahoma  Manufacturing Alliance.  We are also affiliated with automotive organizations such ATSG and ATRA.

We specialize in all vehicles from foreign and domestic cars and trucks to Class 8 Tractors, School buses and Ditch Witches.  We do driveshafts, differentials, engines, clutches, suspension, brakes, PTOs, torque converters, automatic and standard transmissions just to name a few of our product lines.  We are distributors of ZF Dana-Spicer, Rockwell-Meritor, Mopar, New Venture Gear, AC Delco, Tremec (TTC), and many, many others as well as being an authorized MOPAR remanufacturer , authorized ZF remanufacturer, authorized Eaton rebuilder and an authorized Spicer remanufacturer. You may see the complete list on our website www.blumenthalmfg.com

We take pride in utilizing the latest technology on our driveline items, from computer diagnosis to our QC department. Our automatic and standard transmissions are dyno-tested and our engines are broken-in on our engine test stand (for an additional fee we can have our engines dyno tested).  We also operate a Dyno Jet chassis dyno on site for optimal test and tune for customers who'd like to bring their vehicles in.  Aside from retail and on-site vehicle repair, we are also manufacturers of parts engineered from OEM prints and quality aftermarket driveline components and upgrades we engineer ourselves.

Before we sell a product on the market, we subject it to the rigorous testing that would exceed most abuse seen by everyday driving conditions. We are always striving to improve performance and longevity of driveline components and put our products to the test not only with bench test equipment here on site, but also through our race team and the help of various law enforcement agencies throughout the state of Oklahoma. 

We do our best to provide quality products and always welcome feedback and comments from our customers.  Our international reputation for dependable and durable components is well-founded.  With our state-of-the-art removal and replacement facilities, remanufactured powertrain components, and a highly skilled staff of automotive professionals, we make sure that the job is done with the highest quality standards and attention to detail you deserve. Blumenthals where Quality, Service and Price have helped us stay on top since 1949.