1968-1972 were the same, as were all body parts except for trim and grill/headlights.
How often you should replace a roof depends on the type of roof. According to Bobsroofing.com, estimates based on different types of roofs are: Shake/Wood Shingles: 20-25 years Composition Shingless: 12-20 years Rock Roofs: 12-15 years Metal Roofs: 50-75 years
1968-72
I think '65 and '66
75-79
1983-1985
1994 and up.
1973-1987
Yes
1996-2007
g-body 1978-1988
Mine has lasted 20 years and is still in good shape.
1999-2004