here is a update of things I have checked and or found...
flexplate is good , not broken, did have the converter bolted to the flexplate, converter seated to correct depth per factory specs, propeller shaft flex discs in good shape, driveshaft segments meshed and connected, trans fluid to correct level, shift rod adjusted correctly{never removed past removing it from transmission lever, new vacuum line on modulator....so I'm lost....only thought as I write this is could a piece of debris could have clogged a cooler line causing this? have not been out to the garage to check this ,probably not until monday night.