CHAMBERLAINGroup G8808CB-P Chamberlain 8808CB 8-Foot, Compatible Whisper Drive Plus Models, Includes Replacement Belt Garage Door Opener 8 Ft Rail Extension Kit

The kit comes with an additional section of track to extend it for 8 foot garage doors. Also includes a longer drive belt and a longer safety releas rope. Overall it does the job it's intended for. However it was part of the overall crooked track that came with the garage door opener.

When upgrading my garage opener to the Chamberlain B2401 model, I realized I needed the 8808CB 8‑Foot Rail Extension Kit to accommodate my garage’s 8-foot height. It arrived promptly and includes the replacement belt and rail necessary to match my Whisper Drive Plus opener.Installation was smooth: I swapped the 7-foot rail and belt for the 8-foot parts without any compatibility issues. Everything fit perfectly!

I'm basing this review on the product itself, and not on my opinion that Chamberlain should include this standard in all their belt-driven garage door openers.The product is pretty straight forward. If you have an 8-foot garage door, you need this extension kit. Otherwise, the standard kit will not be long enough for your door to traverse the necessary length to fully open the door. The product itself is of the same grade and quality as the supplied rail and belt within your new garage door opener kit. The only thing you're really doing is substituting the the original front rail section with this front rail section. It's the same exact part, only longer. In addition, this kit includes a longer belt to now accommodate the overall longer rail. They also throw in a couple extra parts which I found I did not require, e.g., a longer rope for the emergency release handle, and an extra support bar to provide greater stability for the motor mount.The install was very easy as this kit required no further effort than what is required to perform the original install. Once again, this just replaces parts in your new garage door opener. Yet again, begging the question, why not include these parts in the original box? I get the extra cost associated with including both rail headers and belts, but for a major manufacturer it's pennies on the dollar.

The 8' extension kit is well made and works well. This extension kit is a must have item to get a new Chamberlain GD opener to travel the full 8' needed to fully open a standard 8' tall garage door; as the standard new Chamberlain door opener as sold only opens 7'. The kit is a great fix for a substandard new Chamberlain GD opener unit that does not replace an older opener. Chamberlain should just sell both a 7' and 8' garage door opener assembly without requiring you to order the extension kit as an add on which results in the wasting of the original 7' opener supplied belt as well as the original last part of extension pole which is wasteful and an extra expense on the purchaser and burden to the local landfill.

Exactly as described

I have an 8’ garage door , so needed this extension to mount in existing spot, it worked perfectly, all hardware was there, directions SUCK, not in English, but YouTube to the rescue again, I’m 70 years old but got it installed all alone, and chamberlain makes a very impressive opener!! Very quiet, smooth

This is an extension required for a taller garage door, so generally speaking it either works or it doesn't in my mind. After installing it, it seems to fit in the "it works" category. It arrived in good condition, and installation (done at the same time as the replacement Chamberlain Whisper Drive Plus garage door opener), took only a couple of hours. I recommend this extension, if you need it.

Got a great deal on a new opener to replace my old broken one. Unfortunately it was a 7' opener and would not get the door high enough to fit my police truck inside due to the lightbar and antennas. Put this extension on and now the door fully opens so the truck gets to go back inside