Brake Caliper Guide-Pin Bushings, 1994 (ST with Rear Disc Conv) Options

[UTSlickVic]

Hi all,

Some beginner questions on brake caliper guide-pin bushings. Last when I replaced my brake pads I noticed my guide-pin rubber bushings were looking pretty old/worn, so this go around while I'm replacing my rotors I'll address those bushings.
I have an ST with rear disc conversion, so I'm aware that when looking up parts--> ST parts on fronts and GT parts on rears.

First (dumb one): Are there two guide-pin bushings on each caliper?

Second: How difficult is it to replace the guide-pin bushings? Maybe someone can describe the steps.

Third: I was thinking of buying OE replacement bushings (Wagner), just cause I don't think there is much to them. But please let me know if there is something important I'm not considering. I don't want to realize I needed some other parts, then I'm left waiting on parts.

Thanks in advance!