I have never seen an 86-93 with manual steer
Wait until my power steering fails. You'll see one then. ;-D
Our '76 had very light steering. And I never did work out why our '78 was so heavy in comparison. But if I ever do identify a definite difference, I'll be installing whatever that is instead. (I hate power steering... I used to be able to glance around while driving long boring highways, as well as pull my foot back against the seat to raise and make slight corrections with my knee while eating a KFC burger for example... But power steering now amplifies every minor movement that seems to send me off the road every time I try it now.