Part numbers compatibilty help, please.
 

Looks like the passenger seat rails in my 993, which are bent and jammed up and just crazy expensive to buy new, may be interchangeable with those from any '89 and later 911 with power seats. Part # on mine are 964.521.492.01 and 964.521.491.01. Partsheaven said I may be able to use 964 rails. Anyone know about this? New rails from Porsche are over $800!!!!!

Try a used parts dealer, like LA Porsche Dismantlers. http://www.911pcar.com/