The B-Body Dodge wheel lip moldings are different from the Plymouth cars. They won't interchange with 1970 model cars either. For a 1969 year Dodge Super Bee, you have to get the ones specific for '68-'69, and you need to make sure they're the longer ones - the ones that go below the lower crease line, because they also made shorter ones for the Coronet 500s that ended at the crease and transitioned into the additional moldings running along that lower crease.
What kind of car are you doing - driver or concours resto?