A friend of mine has a '67 Riviera GS. It has a posi-trac rear end, but he has some serious problems with it. I (and many others) advise him to pull the rear axle and have let it rebuild. A other option is to put in a (used) non posi carrier in it, because spare parts for a posi are very hard to find. Now I found this carrier on Ebay, but I would like to know if it will fit in a '67 rear end. Or is there someone who can help me with a carrier (posi or non posi) for a '67 GS http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=34208&item=7976973741&rd=1 Thanks for any input. Bram