Can somebody please explain to me what a 1966 Oldsmobile Cutlass 4-4-2 rear bumper bar is and maybe even where i can find one?

• Part Number: 389657 (Rear Bumper Bar)

 

Per illustrations and parts listed in Olds Parts Book, the "bar" (Group 7.831, part #389657) is what we call the actual bumper - They should have a glossary in the parts books to make life easier for us non-professionals.

 

It’s where most bumpers hang out on weekends