1980 thru 1986 are an exact match, while 1987 to 1996 will fit, but lacks the matching wheelwells of the 80-86. If changing to a different year, be aware of changes made to the tailgate hinges/latches/straps or cables. 80-82 uses a different tailgate than 83-86, and the 87-96 beds would need the matching gate, but there are 2 different types. I'm not sure of the exact year the change was made.