I will let others with more expertise chime in but in looking at the parts diagrams, it shows both options for front brakes, drum or disk. It also shows two options for the brake booster. Not sure I would bother with rear disk (not an OEM option). Looks simple enough to change out the front parts for disk (rotor, caliper, etc.) and probably the booster. Guessing Kurt
@cruiseroutfit could set you up with the parts. Again, biggest bang for your buck will be front disk and it will not be quite so straightforward to try to convert the rears.