I was thinking of getting some, but was a little confused by their date for change over for the brackets. I thought the changes from the early 60's to the later 60's for the seat bracket configuration was in 1984.
www.plantedtechnology.com

Planted Seat Bracket- Toyota Land Cruiser 60 Series [J60] (1980 - March 1986) - Driver / Left
The Planted Seat Bracket is a vehicle specific bracket used as an adapter between the floor of the vehicle and an aftermarket seat and it's accessories. Because the floor of each vehicle varies and typically is not flat, a vehicle specific Seat Bracket is required for installing an aftermarket...
