1969 Super Sport rims used the bolt on center cap,with 1/4" depth on top,on the assembly line.
Early assembled 1970 Super Sport rims used the same bolt on cap,while later cars got the newly designed clip on cap.
Both still had 1/4" depth on top.
If from Leeds & box #91 of your buildsheet says #775,that would mean your car received the bolt on cap originally.
Later on into the 1970's,GM still produced the clip on cap,but now with 1/8" depth,that was available over the counter.
1/8th #323 cap.
