[Mr70]

Doug
This is one of the few components where the part # cast is not the same as the part # called out in the books or on the original boxes.
I called a friend who has still has the original front end on his 69 Camaro,and he relayed the casting numbers on both left & right calipers were #5463633 w/158 & 159 cast as their dates.
I believe Chevrolet recognizes these as #5469122-Lefthand & #5469123-Righthand and those would've appeared on their original boxes.
Both 1969 Camaro & Nova w/ft.disc and 1970 Nova w/ft.disc,used these calipers.
His car also has the original factory dust shields,#5463496-Lefthand & #5463497-Righthand.
I hope that helps some..