I am a disabled man of 56, my speedometer cable broke and they want the length, 73 International 1210 Camper Special 4x4, 392 big block, automatic power steering and a/c , I can't seem to see where it connects behind dash due to my disability, does anyone know the length so I can order it and have a shop put it in, please any help would be appreciated, thanks again for having me, and anywhere besides IH to buy it from.