Chevy.
Thanks for the reply.
One truck had no seat parts, just a later bucket seat tack welded to the seat riser. The other had a torn up but normal looking back and 2 seat cushions (1 is just a pile of bent springs)that seems like they might actually fit, but hard to tell.
Guess I should be looking for bench seat.
Because of the different shape of the riser, is the COE seat bottom different from the standard cab?
