I am building a 32 Ford 3 window coupe and I need a seat. I would appreciate it if anyone could tell me what other cars have seats that would fit this car.  Thanks.  

Tons of options, are you looking for the original seat or something else, maybe a bit more comfortable?  

I would like to know some of the cars that have compatible bench seats so I can try to find one at a junk yard.  

I'm not sure what will fit, other then going out with a tape measure. I would suggest something like wiseguys or go to a local guy.  

Glide Engineering sells seats for '32 Ford Roadsters.  I came across a similar instance because I have a '48 Ford Anglia (raced in the '60s Gasser Wars) and was looking for a nice set to install vs bucket seats.  I was informed by a young lady at Glide Engineering that a '32 Ford Roadster seat would be perfect for my application.  On the other hand, I came across a back seat from a Mini-Van that was sitting in our street yesterday.  Took my measuring tape out and yup, it was almost the same size as the Glide Engineering Seat.  All I need to do is get it reupholstered and padded for the long hauls to the West Coast Nationals in Pleasanton as well as side trips of 30 to 40-miles to cruize-ins.  So, I would suggest that you check with Glide or Wiseguys to see what size seat will fit in a '32 Ford.  Then take the measuring tape down to your local Pick 'n Pull and check out the seats that you are looking for and make your decision.  

Thank you.