u/FlightSuccessful4721

So i bought my first ranger a 1990 2.9 4x4 7 foot bed, and I got it super cheap, it runs but not perfectly, the issues I know about are the push button 4x4 from what I have been told isn't working right now, and the transmission is slow like it doesn't like to shift. I am by no means a expert mechanic i am only 21 and I would like to know if any of you know what is wrong and how to fix it. It drives me to work for now I just want to plan out my repairs.