Sounds more like a thrust bearing required more than a crank.
Just how much crank movement (end float) do you have? Dial gauge on the crank and max movement either way?
But pretty hard for an auto to destroy a thrust washer unless there were problems with the flexplate/torque converter earlier in it's life.
This is an older thread, you may not receive a response, and could
be reviving an old thread. Please consider creating a new thread.
Cummins Diesel Forum
A forum community dedicated to all things Cummins Diesel! Originally founded for owners and enthusiasts of Cummins powered Dodge pickups, the Cummins Forum has expanded to include ALL Cummins Engine applications! Come join the discussion about reviews, drivetrain swaps, turbos, modifications, classifieds, builds, troubleshooting, maintenance, and more!