Hello.

The GTs and K codes got the steeing gear box that had a tag that said HCC-AX and the power steering cars got the gear box with a tag that said HCC-AW, both of which had a ratio of 16:1. You could get power steering on an A code GT. Adding power steering to the car is just a straight swap. It won't be cheap, because you'll need a different drag link, the control valve, the power cylinder, the pump, brackets, hoses, etc.. but, once you accumulate all of the parts, it's just take off the old, install the new. It won't slow down the steering response at all. It will still be 3 3/4 turns of the steering wheel from lock to lock.
