A: The transmissions were originally leftovers from when GM over produced the cases, then changed the Buick engine design (added some power and compression) and it required a larger flywheel which wouldn't fit in the case. From: Frank Swygert <farna@xxxxxxx> Subject: Re: [Amc-list] fsj 232/th400 [was: AMC Ads] To: msproviero@xxxxxxxxxxx, amc-list@xxxxxxxxxxxx Message-ID: <4697951E.7030403@xxxxxxx> Content-Type: text/plain; charset=ISO-8859-1; format=flowed The bell wasn't shallow to accommodate the adapter ring. It was shallow because of the Buick Nailhead engine design. That version of the transmission was sold as a "universal" trans because the design happened to lend itself well to adapting. Kept GM from making another trans. The Nailhead trans case was continued in production for a few years after Nailhead production stopped, I believe, to supply those using adapters. I suppose production rose to the point for most using the adapted trans that it was worth buying specific cases for their engines. _________________________________________________________________ http://newlivehotmail.com _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list