I will try to assist those in and around the Edmonton, Alberta area if they are unsure of this fix. I have performed several "KDP washer tab" fixes to trucks up here as I did not think the jig would ever make it across the 49th parallel. Not to scare anyone sitting on the fence up here, but Cummins Alberta (Edmonton) is aware of this problem after one of their service trucks went down before Christmas!
Regards,
Marc