I pulled the dust shield and checked the flex plate to converter bolts, good and tight. From the motor side the flex plate looks fine, don't see any cracks,etc. I wanted to drain the converter, too, but evidently this one doesn't have a plug. Found a few other sites that refer to the buzz in reverse issue (even a TSB to go with it), doesn't sound like I should worry too much. The two noises probably aren't even related. At this point I think I'm gonna filter & fluid it and let 'er roll. Funny thing is I bought a torque converter and a complete kit for this trans 5 years ago, still sitting on the shelf. Sometimes my luck and my common sense don't travel down the same path...