So I have a 1983 go wagon...340,000miles  and love it. Lately I have been wanting to get a brat but I don't know what years had what or what different generations are what so some info would help. Some questions such as, 
  
Engines 
how the 4x4 engages (I want hi-lo, and fwd with the lever like my wagon) 
what years had the cool rumble seats 
how available small lifts are (2" is what I want for a neat little off roader) 
Ect...