SR7 Performance specializes in overdrive transmissions, racing transmissions and high performance street/strip transmissions. So, from daily driving to towing full competition, we can build what you want. SR7 builds stronger and more reliable transmissions. This ensures your vehicle's drivability and longevity. With overdrive transmissions being the ideal choice, we have stayed abreast to the new developments in the overdrive transmissions. These transmissions offer increased performance and fuel mileage, and when properly and components or call us today, we'll offer you our friendly and technical service for the experienced craftsman or the novice builder.  These transmissons are built to handle high horse power. All transmissions are custom built for your vehicle, carefully assembled and tested by a professional builder. So check out our complete line of automatic transmissions.