Gee, got me... <g> virtually all vehicles with electronics: a TCM/ECM needs to know how fast you're going. Ditto for the electronically controlled transmissions, too. At 05:06 PM 6/25/99 -0600, you wrote: >Which vehicle(s) used the DRAC as orginal equipment ? > >---------- Thanks, Peter Hipson (founder, NEHOG) 1995 White NA Hummer Wagon