Cuda Shaker emblems did not change in thickness, only Challenger Shaker did that.
Chrysler did not offer the Cuda 440-6 Shaker emblems over the counter. The over the counter NOS Cuda 440-6 Rallye hood emblems were sold to service both Rallye and Shaker hoods. These are the correct early brushed finished style, not the later incorrect finish.
Both of these emblems are still sealed in their original Factory Chrysler packages so you know they are real.
If you need any more help or information with these emblems just let me know.
Thanks