Rated 4.4 out of 5 by 29
Rated 5.0 out of 5.0 by Oldcrank Get the right unit first!
This unit does not work with all Chamberlain chain drive units. I first bought an incompatible unit and did not discover the problem until I was well along in the assembly. Back to HD, bought the right unit for like eight bucks more and finished the install in an hour or two. Thank goodness for HDs generous return policy.
All the parts fit perfectly, the instructions are clear and simple, and when your done it works like a charm. Lifts my eight by ten foot insulated steel double wall door with windows easily. Nice.
July 12, 2016
Rated 5.0 out of 5.0 by Carguy easy change over.
For those who want to extend the travel of their 7 foot door opener to accommodate an 8 foot door and it's travel this is a very easy modification to do. Instructions were very clear and it the kit had everything needed to do the change over.
March 24, 2016
Rated 1.0 out of 5.0 by rockit good product-poor shipping
the extension kit was complete, and connected very well with main door opener, worked good
December 15, 2015
Rated 5.0 out of 5.0 by BB1 8 FT. CHAIN DRIVE EXTENSION KIT
Simple addition to 7 foot tall garage door opener kit to accommodate an 8 foot tall door.
December 15, 2015
Rated 5.0 out of 5.0 by Lov231 Chamberlain 8 foot garage door opener
This unit replaced a Genie which was purchased 5 years ago and I had nothing but trouble with. Unit went up quickly since I was just replacing the unit and programmed even easier than the Genie it replaced. The cost was way cheaper than the Genie and was able to purchase a second unit for a little more than the original unit. I would highly recommend this unit.
October 27, 2015
Rated 3.0 out of 5.0 by kjs356 Not the correct extension
All of the components were included with this extension kit but the chain was too long and the hole in the rail for the pulley was too big. I had to shorten the chain and make a bushing for the bolt to fit the larger hole. The box was labeled correctly but the parts seemed to be for a larger garage door. I made it work but it took a lot of time and effort. I have to install another one of these but I plan to check the parts before I start the installation this time and if they are not correct I will return it to the store.
September 1, 2015
Rated 5.0 out of 5.0 by NorthTexasDIY Just the right item
The part was everything advertised! Worked great! Easy to understand instructions.
September 8, 2015
Rated 5.0 out of 5.0 by DIYMaster 8 Foot Door Height
Easy to assemble and install. Makes a nice difference to be able to open the garage door the entire 8 feet. Grade of steel not quite as high as the one I replaced on my 20 year old Craftman opener, but still gets the job done.
May 12, 2015