Bench seat identification help

[ryans69chevy]

Anyone know what year this seat came from? I can't find any pics of these brackets when I use the search engine on this site. Everything I've seen talks about the 67-72 bracket differences.

I forgot to take these pics with the phone sideways. My apologies if they upload the wrong way.

Thanks,
Ryan

[TKCR]

It’s a Squarebody seat. It will fit in any 73-87 truck. The tracks make it more specific, 73-76.
The tracks must pair with the same year seat frame for the tracks to bolt directly to the bottom of the seat frame. So this one is the 73-76
I’ll attach a picture of the other tracks also, and those will be
73-76
77-80
81-87
The 73-76 & 77-80 seat frames are pretty much the same frame, other than the one top bolt mounts in a different location.