I had forgotten that. I've seen that on a different brand (Cad***ac). The service manual to the other car said the inside of the yoke should be packed with wheel bearing grease. That's supposed to keep the ATF from leaking thru that plug/hole/breather/whatever. I don't believe this car had a plug. The purpose of that small hole is so that a suction is not created. As you drive and the drivetrain flexes, the yoke slides back and forth on the tailshaft, making the driveshaft shorter/longer as terrain dictates. Having this hole at the back of the yoke (by the U-joint) prevents it from creating a vacuum / building pressure as it performs this sliding motion. Good call, Geoff. I'd bet dollars to donuts that's the problem in this case. --Brooks in Dallas -----Original Message----- From: mailing-list-owner@xxxxxxxxxxxxxxxx [mailto:mailing-list-owner@xxxxxxxxxxxxxxxx] On Behalf Of Geoff Simpson Sent: Friday, July 07, 2006 3:45 AM To: mailing-list@xxxxxxxxxxxxxxxx Subject: RE: IML: Tranny leak: yoke? Hi All, I had a similar problem with my 70 valiant hardtop, had a 904 that would not respond to new seals. Turned out that the internal bore of the universal front section has a frost type plug which is just hammered in and is not entirely leakproof.Dont know if a 66 is the same and you really have to pull the driveshaft and seperate the joint to check it. regards Geoff Simpson in NZ _________________________________________________________________ Become a fitness fanatic @ http://xtramsn.co.nz/health ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.9.10/383 - Release Date: 7/7/2006 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.9.10/383 - Release Date: 7/7/2006 ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm