Have a friend with TM-G707a radio wishing to separate the head... It post that the kit is a DFK-3C/4C/7C I have a TM-742a separation kit with DFK-3/4/7 ID... NO "C" suffix posted... I'm looking for the difference so as to help him and not put him and his radio in jeopardy. Or of course if you have a suitable kit... What $$$ Thanks for reading... 73 Larry