What is the last date code for 1968 Z/28 in December 1967?

[Larry]

Jim,
I guess I don't understand what your saying here. Are you saying that you have a 12E Camaro with shoulder belts? What does the 749 mean?
Larry

[Hot Rod Todd]

I think 749 is the interior code for black houndstooth.

Jim,
I guess I don't understand what your saying here. Are you saying that you have a 12E Camaro with shoulder belts? What does the 749 mean?
Larry

[169INDY]

Yes like Todd mentioned, I have a orig interior 68 car from LOS w/ cowl tag 12E equipped with the Deluxe Houndstooth Black buckets (Trim code 749) and it was built with shoulder belts.

I need to Call my friend Roger and see if his 12E LOS z28 he is reastoring has the shoulder belts  also.