I have a 1987 290 drive with a 151b engine I would like to replace the u joints, gimbal bearing and any other items that should be replaced while this is apart. The big question is can I do this by just removing the upper gear case, our do I have to pull the outdrive to remove the upper case to get to the u joints and drive bellows and other items I should replace while the outdrive is apart. I would appreciate a list of the items I should replace while I have the outdrive apart, and any other suggestions about doing this job. I am not a mechanic by any means but I have done the auto hot rod scene for years doing engine and trans repairs and changes and the other maintenance items that came up.
thanks for your help
thanks for your help