Steering Wheel Ring and Cable Part# 8-33-121

Hey Guys and Gals! Looking for a new or used "ring and cable", part #8-33-121 for my 1970 Dodge Dart. This part sets in the steering wheel and rides on the "roller" in the steering column that provides the horn operation. My parts plastic insulation completely fell apart and needs to be replaced. Anyone with this part new or used please contact me. Thanks