I had to replace an otherwise sound crank in my chevy 350 because I had .026 in end play. The thrust flange was badly worn from the crank being loaded forward. I have seen this on manual transmission applications but I'm running a non-lockup 700R4. Will a ballooning converter's external horizontal dimension grow and cause this? Need to know if I need to invest in anti-ballooning plates or to look elsewhere for cause.