I've got a stage 1 trans & 10.5 convertor which I purchased from C&K Performance. The question is today when installing convertor in transmission when the convertor is pushed all the way back on transmission shaft the ribs on the back of the convertor rub a casting bump on the transmission pump. Is this normal and when it is bolted to the flex plate will it pull forward enough so it does not rub. On the stock tranny and convertor there was no rubbing when convertor was pushed all the way back? Thanks Jicaju