3958640 was the first part number for a 69 SS with R/S.
3958638 was the first part number for a 69 SS w/o R/S
Why the 640 was superseded to the 638 makes no sense
I would like to know what the casting number was on the 3958638
The 6263015 has a casting of 3986590
The 3981921 has a casting of 3982043
The assm line installed SS emblem has a casting of 3943229
I'm wondering if the 3958638 shares the 3943229
Research sometimes is a pain. Thank you, Joe
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1968 Z/28 Corvette Bronze. Black Hounds Tooth. 02E Los Angeles born 3/13/1968 pnt OO
1969 SS396 Yellow/Yellow 08E Norwood born 8/28/1969 pnt 76E
1970 'cuda Moulin Rouge, 440-6, 4 speed
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