Stumbled upon an interesting brochure on chain lifts, while I was randomly surfing the internet...
This is a local business that seems to supply some chain lifts to SFGAm. I wonder how much one of these costs to replace on American Eagle (which is pictured a few times). Anyone know of any more local companies that supply parts to major rides? Sounds like an interesting career to be in, and be involved with amusement parks.
http://www.ustsubaki.com/pdf/brochures/L10844_amusement_park.pdf