79-91 "smooth case" Mazda 5 speed tranny
 

I have the above transmission for sale, but don't know it's value. Anyone know?
It worked perfectly when removed from vehicle.
Also would like to know where the serial # is located. Thanks

I picked up a transmission of unknown mileage and function out of a '90 FC from a pick-and-pull for $100. I've seen them on eBay and Craigslist for $250-$400. Based on the forum location I'm assuming this is out of a '81-85 car? There are several nuances that make them different from later '86-91 versions.