the trucks up to 72 were a lot skinnier than the 73-87 trucks so you might be okay. I just sold my 79 but when i parked it nose to nose with my brothers 70 you could tell right away there was a huge difference in width. not to mention three people side by side in his truck was cramped, as opposed to mine where I could almost sleep on the bench seat if i used the arm rest as a pillow.