70 Chevelle SS center mounted mono speaker bracket

[SS427]

Can everyone check their stash and see if they have a mounting bracket for the center mono speaker on a 1970 Chevelle SS dash. Mounts the dash side of the speaker to the dash and a Malibu uses a different bracket. About 8-10" long, part #3961583 and has a mounting tab on either end to mount the speaker to it. Page 500 of the AIM manual. Unfortunately I do not have any photos of this bracket and this was the closest I could find on the net. It is the long skinny bracket as seen on the top of this photo. Need one but will buy two so I have a spare.
Rick