* Change 2 Part Black {6628 Technic, Pin with Friction Ridges Lengthwise and Tow Ball (Undetermined Hole Type) to 6628a Technic, Pin with Friction Ridges Lengthwise and Tow Ball with Round Pin Hole}
* Change 1 Part Black {6628 Technic, Pin with Friction Ridges Lengthwise and Tow Ball (Undetermined Hole Type) to 6628a Technic, Pin with Friction Ridges Lengthwise and Tow Ball with Round Pin Hole} (Extra)
Comments from Submitter:
From my personal collection. The set was bought new and never mixed with other sets.