Transmission Specialties

For over 40 years, Transmission Specialties (TSI) has been at the forefront of creative new products for the high performance transmission and converter industry. TSI prides themselves in a wide range of performance customers’ goals. From iconic transmission platforms such as the PowerGlide and Turbo 400 transmissions to the 4L60E, 4L80E and beyond, TSI manufactures premium quality torque converters, billet input shafts, and more using best-in-class materials.