The correct casting numbers for 1970 Camaro calipers are 5470125 for the left side and 5470128 for the right side as shown in the pics below
The casting numbers on many 1970 Camaro calipers are very difficult to read. The first and last digit of the 5470125 casting number can look like the number 6 when in fact they are the number 5 as shown in the pics below
The first digit number 5 of the 5470128 casting number can look like the number 6 with a really bad casting but with a more crisp casting the actual number is 5 as shown in the pic below
The big problem with the number 5 is the bottom curls around almost to the point of connecting and on some they do connect which makes it look like the number 6, however a 6 is curved at the top and the number 5 is straight across the top
I have included pics of 1970 Camaro calipers with the best looking casting numbers to show they are in fact 5470125 L and 5470128 R
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