I have a PTC converter for my 904 lockup and it came with 5/16 flexplate bolts. However I am using an Sfi flex plate which is substantially thicker than the normal mopar piece. I’m finding that the flexplate bolts do not have enough thread engagement to properly clamp down into the pads on the Flexplate. Does anyone know if there are any longer links flexplate bolts available thanks. There is about .450 of thread length on the current bolts