Rear bar .. normally just a pressed metal  U beam with rubber bushes that are crook and get worse as time goes only, helping to make the rear suspension unstable.

You can replace is with  a better USA made panhard bar on your 1965-1970 Chevrolet B-Body Impala, Caprice, Biscayne, and Bel Air in this  heavy duty adjustable unit!

Delivery additonal. Note suitable for posting.