grille emblem
 

Joe...the Emblems I have are 3982043 in a box with part number3981921 and the other one the number cast on back of Emblem is 3986590 Tom

Tom. Since you have 2 different numbers, how does the length on the pins compare? Are the 590 pins longer by chance? Thank you, Joe

3958640 was the original part number
it was discontinued and replaced with 3958638.

3958638 then showed up as use part number 3981921 by 1981.

3981921 is also the SS emblem for the 70-72 Camaro. This may be why the studs are shorter.

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Why the 640 was superseded to the 638 makes no sense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

The one I have in the box is cast 229 and the box says 638

Sent you a PM...Thank you, Joe

69 Grille emblem
 

Joe I will measure the pins this wknd and let you know. Tom