Replace Chain with Belt
My old Liftmaster Chain drive unit has ceased working. I've put enough into repairs in the past (enough for a couple new units) that I'm done with it. Since my master bedroom is over the garage, a belt drive is preferable anyway. I'm looking at the Chamberlain Whisper drive, but I worry about the difficulty of DIY installation. My current units hang a full 6 feet below the roof of my garage (ceiling height is probably 14 feet or more). If I can't use the existing brackets I'm in trouble.
Since I'm going from chain to belt, how hard is the installation? I know I need to use the new rail, but what about the brackets? Sensors? If I know how it works from installation, my future repair bills should go down as well.