I agree with replacing with a chamberlain, I did this for myself, then a few neighbors. If you are careful, you can use the existing front track mount, and the existing ceiling rails, as well as the existing wiring. This cuts down on the installation time. While I have the chain drive unit, I did help install 3 belt drive units, and they are really quiet.
__________________
Pennsylvania, for 60+ years, most recently, Allentown, now TV. 
|