The extension spring is located on the top of the garage door and is attached to the garage ceiling. http://[email protected]@www.gnu-darwin.org/www001/src/ports/www/b2evolution/work/b2evolution/blogs/install/phpinfo.php?a%5B%5D=%3Ca+href%3Dhttps%3A%2F%2Ftoprankdesign.co.uk%2Fwiki%2Findex.php%3Ftitle%3DCommercial_Residential_Garage_Door_Providers_Hickory_Nc%3Egarage+door+repair%3C%copyright%3E%3Cmeta+http-equiv%3Drefresh+content%3D0%3Burl%3Dhttps%3A%2F%2Fforum.elaivizh.eu%2Findex.php%3Faction%3Dprofile%3Bu%3D399656+%2F%3E