decided to give her a little colonoscopy today, just had to know the 8.5" 10 bolt rear end digits so that I could set my speedo proper in HP Tuners
we can make out 16 41 followed by 1 77
so looks like it was assembled on 1=January in 77=1977
then we take the bigger number 41 and divide it by the smaller number 16 carry the one, times the circumference of the earth and we go ourselves a 2.56 tall gear rear end, good highway gears but this don't explain why she is so burly with that little 5.3L in her
http://www.teufert.net/camaro/1977.htm
apologies the pics are blurry