I have a 1994 c1500 work truck that started out with a straight bench seat. someone converted to captain chairs. I want to put the stock type bench back but would like to know what other year seats w

i have a c1500 WT that started out with straight bench seat and was converted along the way with captains chairs that are too large for the cab. I want to replace with the original type bench seat. what year seats can I use and are there any other models that would work. any help is good.. thanks