The ‘73+ kit would work except for the pitman and idler arm. If you switched to a 73+ center link the idler would work, but, the pitman would have to be a 73+ manual steering pitman if you have a small sector power steering box (or manual box).
The sway bar would have to stay ‘68-72, unless you changed the whole K frame out.
But if the OP had Hotchkis UCA’s already he may not need a full kit anyway.
