The throttle valve cable (TV cable) is present in all modern cars with automatic transmissions. Many people believe that the TV cable is a detent downshift cable and that this is its only function. In actuality, the TV cable controls line pressures, shift points, part throttle downshifts and detent downshifts. The cable functions similarly to the combination vacuum modulator/cable systems found on other automatic transmissions The TV cable is attached on one end to the throttle linkage and on the other end to the transmission. As the throttle is depressed, the cable is pulled, causing progressively later upshifts at higher throttle positions. Additionally, when the cable is pulled a certain amount (ideally, when the pedal is completely depressed), the transmission, if possible, is made to downshift. Universal design is compatible with most applications Fully adjustable so they can be used with various intake/carburetor combinations Heavy-duty cable for increased durability and less chance of cable knotting upPit Stop USAoffers TCI 200R4/700R4 Universal Throttle Valve Cable 376800 at low everyday prices. Be sure to check out all of our products from TCI Automotive including TCI Automotive Automatic Transmission Kickdown Cables.