1985 alpha service question

shimano

Petty Officer 2nd Class
Joined
Jul 26, 2008
Messages
143
Removed the drive on my boat today.Needed service,Upon inspection noticed some water in the drive bellows(half a cup).Gimbal bearing is shot ,the u-joints look fine,no rust on anything.While it is apart should I just go ahead and change the bellows(the exhaust and shift bellows look old ,but the drive bellows looks like it has been changed.I figured while apart change them all to be sure.I was able to remove one of the allen key bolts the other started to move then the bolt stripped,Any tricks to remove a stripped one?
 
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