Steering boxes

Several years ago I bought a steering box at a junk yard. It came off a 75 or 76 T-bird. To my surprise it has a turn from lock to lock of 3.5 the standard Ford unit is 4.1 turns.(This the steering wheel as you turn it from left to right the amount of turns that it is needed.)Unfortunely the ID tag was bent off .I installed this on my old Torino and it had a tighter feel.Does anyone know any info on this steering box? I think the gear ratio is 16 to 1, the regular ford is 21.8 to 1.The info I am looking for is the tag number from ford.Two if it was a ford option.It does have ford on the casting.Don't forget it did come off a old T-bird.Three where to get another one,believe me your car will have a better steering feel. P.S. the one I have is not for sale, it that much better than the original unit.