cross member info 72 into 77

[Rooster's 67]

My brother wrecked his 77 3/4 ton work truck saturday and is needing right lower control arm, upper control arm, ball joints and tierods. we have a 72 3/4 ton with fresh parts on it, curious if the cross member will swap and then all the suspension parts, or will the suspension components from the 72 bolt on to the later model truck without changing the cross members?