The Definitive 67-72 Seat Swap Guide Thread ....

[Deej-79]

Originally Posted by Molberg

88-94 extended cab to the best of my knowledge. No 3rd door yet.. So the seat brackets were different to enable passengers in the rear seats. (Fold and slide ahead) not needed on a full crew

For anyone thinking about this an fyi, my 97 Silverado has the 3rd door but the passenger seat still slides and tilts forward like a regular extended cab seat would.