Last winter I needed to do some work on my snowmachine (snowmobile to you southern fellers). The work to be done required the the track be off the ground so I could drop the track and skid out. I decided I'd slig it from the ceiling and wouldn't you know it the bracket that holds the garage door rail up was bolted to the ceiling very well (or at least I thought). I raised the end of the sled and after about 20 mintues of work the bolts pulled out of the ceiling and everything came crashing down,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,on me. As it turns out the bolts (not even sheet rock screws) were just threaded into the sheet rock alone, no studs were used!!!! After all that the garage door has been thru I'm not surprised it doesn't close very good.