I've done many brake jobs in my time, 45years worth ,looking at the other side is useless .how many times I worked with mechanics with 10 plus years of experience who couldn't get it wright. the adjuster wheel has to be on the same side the leaver . just spin the adjuster up and watch it come off the leaver. then it will back off and so will your brakes (its almost off the leaver now) now are you comparing your soft pedal to a new vehicle with disc brakes all around? all manual drum/ disc have a little play my 73 duster also, does the pedal become hard after 2/3 pumps when you hold it down. then its a adjustment issue somewhere.to determine front or rear put a vise grip on rear rubber brake hose if pedal is hard the problem is in rear, if still soft go back to the front brakes check for loose wheel bearings, caliber travel too much. also if you go back to #18 and look close you will see adjuster wheel is on leaver side .good luck hope this helps some.
