Hi Gurus, I had buddies remove my Ham IV rotor from the tower. It has a cracked bell housing. I have several Ham M rotors, with bell housings that look a lot like the Ham IV. Do any of you good people know if the bell housings are interchangeable? This could save some bucks. -Rex- K1HI Rex Lint Merrimack, NH WWW.QRZ.COM/db/k1hi