96 explorer transmission trouble

[cobratori]

When im going over 30 mph, and let of the gas, the trans. seems to be free wheeling, and making a noise like a drill or small motor. Sometimes it wont go into reverse, it just makes that sound, and you have to put your foot on the brake to get it to stop. This just happened outta the blue, i let off the gas to go from a 70 mph zone to a 60 mph zone. I put a bottle of Lucas additive in it and drove about 50 miles, and no change. I searched for this, and couldnt find a similar problem. All the tranny shops around here are closed on saturdays. Anyone have any ideas? Thanks

 

[KPT]

Its your transfer case.

Try low range. I bet it doesn't make the noise.

 

[cobratori]

I had the transfer case changed already. Im not even sure its the tranny thats making the noise. Could the cruise control be making that noise? There is a sensor of some kind on the front axle that is covered in oil, what is that thing? Its funny that it all started when i canceled the cruise.