Widespread protests and no-confidence votes respond to move to force through legislation that increases the retirement age to 64 from 62.
European Union has to approve the measure, which is aimed at making room for younger workers.
Scott Morrison said Tony Abbott’s age 70 hike will not happen, holding the retirement age limit at 67.
Shinzo Abe planning social security system overhaul over the next three years, pending re-election.
New timetable sees pension age rise to 68 by 2037, seven years earlier than current legislation.