Check the listing for details. 1981-1993 Switchable Automatic Shift Control Harness. Condition: New. Listed at 74.95 USD. 1981-1993 Switchable Automatic Shift Control HarnessCorvette Undercar Automatic Shift Control Harness-Switchable, switchable from inside the car with the switch mounted where you want it. This keeps the transmission from shifting back and forth at the 35-45 MPH speeds. Will allow the driver to control the converter lockup by using a small toggle switch, which can be conveniently mounted inside the center console. For example, "on" for in-town driving or racing, "off" for normal highway speeds to regain peak fuel economy. So get the most of your 700R4 and order one of these products today! Fits 1981-Early 1993 CorvettesDriver ControlledSmall Toggle SwitchLocks Torque ConverterMADE IN THE USATech Note: Legal in California only for racing vehicles which may never be operated on a highway. Returns will not be accepted on wiring harnesses that have been installed or altered.Click here for more C3 Electrical! Visit Mid America Motorworks eBay store for Corvettes!. We offer over 3,200 Restoration Parts, Performance Upgrades and Personal Accessories for 1953-2019 Corvettes and Corvette Owners. FREE SHIPPING within 48 STATES. **International Customers Must Check Out with the Global Shipping Program Only!** Thanks for looking! **SHIPS DIRECTLY FROM SUPPLIER**