70 Swinger Dash Question

The frames were also different between 70 thumbwheel and 71 knob radio. You will find a knob style ralleye dash and frame in a performance dart, duster or demon in 71. If you put add on here for 71 ralleye dash you should find one. The change over in radio style happened in cars after June 1970. July 1970 is the first month of the new year body styles. 71 bodies start in July 1970. Still true with vehicles to this day. July is start of new model year.