Re: So when in 1972 did GM start installing single wall tops?
72 2wd GMC built in Flint on March 14th 1972 Single wall no speaker
72 4wd Chev built in Flint May 1972 Single wall yes speaker
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1969 Chevy Custom Camper 3/4 ton Rust free survivor
1972 Chevy Blazer CST 4x4 Almost Rust free survivor
1972 GMC Jimmy 2wd Undergoing surgery
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