Hey all, great board... 1st post,<br /><br />Just purchased a mint 22 cabin cruser with a 225 OMC electric shift. (don't worry I got it very cheap) My problem is a "klunk" in the intermediate housing that sounds like it is comming from the flywheel. I think it has to be worn splines on the intermediate shaft and/or the coupler on the flywheel is worn out. The shop is going to run the boat in the morning and I expect them to be pulling the drive and removing the intermediate shaft to look for wear. Question: If we pull the engine and have the coupler changed and I get a new intermediate shaft and coupler what year should I get that will still fit yet have the stronger splines? I do not want to go with the '72 series as I have read on this board that they are prone to this problem. Please let me know what year shaft and coupler would that would still mate up with my 72 ele drive. I plan to replace ball gears on both as well. Thank you so much.. wish me luck!