Rated 4.4 out of 5Â by 11
Rated 4 out of 5Â by p07r0457 Good value if you already have the opener -- otherwise don't.
I believe my situation is rare/unique. I had replaced the garage door (7ft height) and opener (Craftsman) on my old home. I then purchased a new home 2 months later. It was too late to return the opener, but I didn't want to just leave it -- it had fancy features such as battery backup and iPhone integration. So I swapped openers between the homes. However, I discovered that the new home had an 8ft door, and I needed an extension kit. I couldn't find a Craftsman extension kit in stock, so I bought the Chamberlin extension and installed it, and everything works okay. There is a bit of flex in the middle of the rail assembly when opening the door. I would say the extension is a valuable way to save an existing door opener. However, if you are buying a new opener, don't bother with the extension kit. You can get an opener with 8'ft long one-piece rails from any reputable garage door installer/vendor. If I didn't already have the opener I would have rather purchased a one-piece unit. They are much stronger. So I would say the value of this product depends heavily on whether you're replacing the opener (don't do the extension) or if you already have an opener you want to save (extension works okay).
May 27, 2014
Rated 5 out of 5Â by Ramprakash Received the product as expected.
Whisper Belt drive is really smooth with less noise. Happy with the product.
June 11, 2013
Rated 5 out of 5Â by gearhead this product is needed for an 8 foot dooor..
so far Chamberlain has the best openers and parts then any of the other openers I used..
April 30, 2013
Rated 3 out of 5Â by disgruntleddiy Ridiculous Price =>8^(
Let's see, paid $200 for the HD600D, $40 for the "installation upgrade kit", no warnings about my 8ft door being too high, so I did the installation and only THEN discovered I needed an extension kit...which means I need to pay another $50 and re-do the installation. So, I decided to return everything for a refund of $290 and put in a different model that accommodates 8ft doors AND costs much less.
November 27, 2012
Rated 3 out of 5Â by waynep must add to work on 8 foot tall doors
it is increadable that you must spend around 30% more of the door opener price to extend it 1 foot
May 15, 2013