Does the GSL-SE have a different steering box than the other models? (84-85my)

 

all 84-85 RX-7's have a variable ratio of 17-20:1 with a manual box. a power box yeilds a ratioof 15.83:1. where it differs is that the SE takes 3.4 turns to lock with a manual box and 3.0 turns to lock with a power box versus 3.7 turns to lock with a manual box on a non SE. so, as far as i can surmise, the steering boxes are the same, i would just guess that the SE's larger wheels offset the turns to lock.