NOS 66-69 A & B-Body Bucket Seat Rail Adjustment Link Wire. These 12-7/8″ long Link Wires were used to connect both Seat Rails together to allow the Inner Rail to disengage with the Outer Rail when you want to move the Seat Forward or Backward. The Factory Parts Books show that both Bucket Seats in 1966 used these, whereas the 67-69’s only used it on the Left(Drivers) Hand side Seat. OEM Part # 2765433. Limited Supply.