Have fun http://www.google.com/search?hl=en&q=camaro+rear+axle+codes&btnG=Google+Search A better search might be here http://www.google.com/search?hl=en&...=result&cd=1&q=GM+part+rear+axle+code&spell=1 http://novaresource.org/axle.htm Scroll down to the 1975 year models.
the pt code shows up in the hollander interchange as both a 67 camaro and the later 75-77 camaro. a tip would be the depth of the spring mount perch as all 67 camaros were mono leaf and had shallow perches compaired to the later that had multi leaf.
from the way the cover looks it appears to be a 8.5 ten bolt which was available in 70-81 camaros, the width from backing plate to backing plate would help identify what year it is also,the 8.2 67 rear would have a crease on the top of the cover like a 12 bolt
The pumpkin ears look to be 7.5" 'pointy' ears to me. Any additional photos Miky? Rear cover straight on, spring perches to show depth. Alex.