Question for the group - I've been researching rebuilding or replacing the rear in my 1970 cougar (which folks have already hooked me up with some great suggestions, thanks!) and it winds up the most cost effective solution for me is to actually replace the entire unit rather than rebuild the current unit from the ground up. So, the question I have - it's a 1970 Eliminator. Is the original rear end worth anything? In other words, I really dont want to keep a spare rear end lying around, but am wondering if I should consider rebuilding the original versus replacing it due to the potential loss of value of removing (and scrapping) the original. Any opinions on the matter?