Retirement tax questions

 My goal would be to move all of the deductible contributions to my Traditional 401(k).  First this cannot be done as the non ded & ded contributions cannot be separated like you want legally   and  unless the IRA was a roll over from a prior 401K   AND  the new 401K allows the roll over  AND  the IRA was not poluted with any other contributions  then  you cannot do this at all.