The automatic seat back release option was added in early 1970 for Cougar and Mustang. The automatic seat back release would pull the release lever on both of the bucket seats. This only happens when the either the driver or passenger side door is opened. Kit comes with the 1970 specific wiring harnesses from the solenoid, includes 3 pin switch for the passenger pillar post, relay, solenoids, and cross over wiring. This option is best added to seats prior to upholstery. We are not sure that an installation can be performed with existing upholstery on the seat backs. On cars built in Dearborn, the body buck tag will have a code of SBR.
*Note - Only fits 1970 Cougar and Mustang. Later years are available.