When changing gear lube noticed that my '88 Bravo I has a decent amount of side to side play in it, approx. 2-3" as measured at tail of drive. This has occurred over this season as know did not exist when boat was put in in spring. Not sure where to start looking?<br /><br />Concerned this may have may have been partially caused b/c slip is shallow and drive may have been partially submerged in soft mud (Ches Bay) on occasion and boat was rocked by wind/waves. If this was the case is there any way to tell? Marina knows I have been concerned about draft of slip.