1966 B bodies with rear seat belt retractors

[gtx6970]

Ok, gents

Mine is supposed to be equipped with the retractors on the rear.
So, are they on all 4 rear seat belts, or just 2, if so, which 2 belts

1962-1968 Dodge Chrysler Plymouth Seat Belt Retractor Assembly 2495897 NOS. | eBay

 

[Jerry Hall]

The 2 male ends. The female ends or latches don't require them.

 

[Fran Blacker]

My window sticker says retracters front and rear $9.65.