Anybody know if a power steering gearbox from a 72 will work on a 68?

It will work,i used a 72 on a 67.Problem i had was the rag joint had to be turned 180,because the pin didnt line up.I just pulled the steering wheel and 180d it and was all fine.You might have to get a new pitman arm though,because there are two sizes a big tapper and a small tapper hole.Just keep that in mind.

:yes: same pitman arm too.