I have an old GE Dryer (Model # DDE5300BBL) downstairs. The belt popped in it about a month ago and I finally got around to fixing it. Unscrewed everything, cleaned it, but then I couldn't find out how the belt fit. Luckily, everything is on the internet.
Had I shopped a little harder, I could've gotten the belt for "about $6":http://cgi.ebay.com/GE-WE12X82P-Dryer-Belt-WE12X82-New-fits-Hotpoint-RCA-GE_W0QQitemZ380065144859QQihZ025QQcategoryZ20714QQcmdZViewItem, but I ended up spending about "$18 with shipping":http://www.partstore.com/Part/General+Electric/General+Electric/WE12X82/New.aspx. Taking the thing apart was easy. Cleaning the beast was a task, taking about 40 minutes and several trips to empty the vacuum. Then the belt wouldn't fit right. Turns out I was doin it rong. Oh well. A couple more google searches led me to a that describe "how to change a GE dryer belt":http://www.applianceaid.com/ge-dryers.html#belt (among other things). Great little site. Now my dryer is happily spinning away and the repair only took about an hour total.