Steering Gear box

[Grunk]

Hi,
Just rebuilt the front end suspension got it aligned but the steering box is shot. The parts stores list a 2 1/2 for Sport Susp. (FE2, FE3) and 3 1/2 turn boxes. I am assuming the 2.5 box.

Is there an upgrade to these boxes that I should look out for?

Any suggestions?

thanks
Rob