Bob Helts book, I've been told indicated that all the Corvair trannys (exc glides) were Saginaws and perhaps the shop manual also - Clarks tech folks as of today indicated - all corvair 60-65 are muncies - 66-69 are saginaws. true or false - any suggestive literature on the topic.... Best regards, Scott Morehead T-mobile Cellular 843 - 478 - 4223