if you’re not a mechanic, and haven’t the right tools, ex: a
good drive set, a lift/ramps….don’t even bother trying it yourself…..as for hp…you would have to know the size of the
engine, what it was rated from the factory, etc…..
its a pretty good little job if you haven’t ever did it before,you need to get it high enough in the air to work on,you also have to remove both front wheels and disconnect everything on the rack to get it off,and you will need some help with it,its not an easy job to do by your self,you can probably do this ,but get someone to help you with it,good luck on it.
I just changed mine on my 88 5.0 LX about a month ago. You have to remove the tierod ends from the spindles and the lines from the rack and pinion before removal. Then just 2 bolts hold the unit to the chassis. It is a little tight coming off, but it will come out. You must then remove the tierod ends and sleeves from the old unit and transfer them to the new one. Try to measure them so that the alignment will be fairly close so you can drive it to the alignment shop when you get the new one on.
The follow the bleeding procedures that come with the new unit after installation to keep the pump from being noisy and having air in the system.
About 215hp.