It is a '84. Mazda made the Sundowner model (mine) in a sport version which had bucket seats already. I looked at one at the junk yard and Mazda had installed a brace behind the shifter to bolt the other side of the seat in. So I may not be able to install them at all.
I took a bench seat out of an 89 reg cab and stuck it in my 92 2600i xcab looks cool and fit perfect just had to switch the seat belt female part on the floor so I could slide the seat back