I wish this guide would get edited to correct the misleading or incomplete info. Those covers on an 8 1/4 are round......not oval.....and the application years are wrong. The B-bodies started them in '69, the B-vans in '71, C-bodies in '70, A-bodies in '73, and 1/2 ton PU's in '72. Year ranges and models are incorrect in the 8 3/4 and 9 1/4 sections too.