Droping added column on replication table

Hi...
What can someone correct if i am going in wrong way steps i am following to drop added column on replication table.
Step1: Drop the subsribers of Article as exec sp_dropsubscription
Step2:Remove the Article (Table) from the Publication as exec sp_droparticle
Step3: Drop column manually.
Step4:Adding Table back to replication.
This is the case when i am not using sp_repladdcolumn to add column.