3pt was not available until Oct/Nov 1964 on the G705/6 tractors. It was not factory installed but could be ordered with the tractor for dealer install. I'm sure one of these could be installed on an older GVI but it would not have been available while they were being manufactured. This was a crude 3pt system without all the draft control capabilities. It was run from the tractor type "E" hydraulics and used a pair of standard 3x8 cylinders which were not included in the kit.