preacher putz

Have a 96 collectors edition, LT1/auto.

Had a leak from the speed sensor in the trans , the 0 ring was shot.

19 years old so I replaced with a new sensor and 0 ring. The leak is
gone and the speedometer works good , but it has a wine at low speed,
15-35 MPH. The noise is getting better the more I drive it, but is there anything to worry about?

thanks as always preacher putz