Converter noise & Trans hunting

[Googs]

So I have 2 issues that I think are trans related. 1) I have a sounds like a bolt rattling around in a can coming from underneith my car. I've checked the converter bolts, they are tight. I've also taken a steatha scope to the bottom of the motor & trans and didn't hear any thing of that nature. Could it be the converter?
2) At crusing speed, around 45mph, the trans feels like it's "hunting" for a gear even though it has already shifted into OD. I can down shift it into D and it goes away at the same speed. Under normal & wot driving conditions, the trans shifts good.
Any ideas would be apreciated.
Thanks, Craig

 

[Googs]

Am I just way off in my thinking? Anybody got any ideas?

 

[bison]

The noise could be the converter. Try unbolting the flexplate and start it up. The other hunting thing could be a TCC partial lockup and unlock repeatedly. Does it do it with the TCC disconnected?

 

[Googs]

Does it do it with the TCC disconnected?

Don't know, can that be diconnected without dropping the pan?

 

[bison]

Just unplug the 4 pin connector on the side of the trans and go for a ride.