Trunk Monkey
Moderator
I wouldn't go so far so say that the issue you experienced with the flange teeth is THE cause of the clunk some folks experience when shifting into drive. It's one possible cause and maybe was unique to your vehicle because of a driving behavior of the PO. AFAIK you're the only one that's reported wear in the flange grooves. Maybe the PO had a habit of rolling backwards in reverse and shifting straight into drive while still rolling, causing a harder than usual hit in the hub. Many more people, including a TSB, report the clunk is related to the drive shaft in some capacity.