Upper Control Arm Bushings 69 Z28

[rockphil]

I have located someone with what is supposed to be an original set that are in an original GM box with the correct part number of 3711826 on the box. However, the mold mark of the bushings states "Clevite Silentbloc 62659". Is anyone aware or know where to confirm if Clevite manufactured any of these bushings for 1969 camaros.