I don't know if the std. cabs would have come w/anything but a bench seat, even w/SR5 model, you tend to have less leg room w bucket seats. I am also not sure if the 3rd gen SR5 model was available for the std. cab, or for anything w/a 4cyl. in it. I have only seen the SR5 badge on 3rd gen X-cabs and Runners w/v6.

More than tread lightly. Leave it like you were never there, nor anyone else.
'90 X-cab 4.88's 33 BFG AT's, rr ARB, Headers, Ignition upgrade, cold air induction.
'91 X-cab 5.29's 315's BFG MT's, rr ARB, custom bumper and flatbed