jeepjag

Hi all.....need some advice please.....2003 grand cherokee WG....some movement on rear wheel bearing.....used slide hammer & removed shaft & cut off bearing(it was broken) & retainer ring & oil seal.....pressed on new parts with 20ton press....refitted.....guess what still have movement when rocking the wheel.....removed all again & could pull off the retaining ring with my hand........couldnt move the bearing though......new ring on its way.....question...the original oil seal had a metal outer where as the new one is just plastic will this be upto the job of holding in the staft & tightening up the bearing...any one had problems like this...Thanks Steve